Home / 805,816.80-1,208,725.20-490,888.80

Finding the Fourth Proportional to 805,816.80, 1,208,725.20 and 490,888.80

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Solution

The fourth proportional to 805,816.80, 1,208,725.20 and 490,888.80 is: 736,333.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,816.80 : 1,208,725.20 = 490,888.80 : x
  2. Step 2: Convert to fraction form
    805,816.80/1,208,725.20 = 490,888.80/x
  3. Step 3: Cross multiply
    805,816.80x = 1,208,725.20 × 490,888.80
  4. Step 4: Simplify right side
    805,816.80x = 593,349,662,957.76
  5. Step 5: Solve for x
    x = 593,349,662,957.76/805,816.80
  6. Step 6: Final answer
    x = 736,333.20

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.