Home / 788,659.20-1,182,988.80-490,060.80

Finding the Fourth Proportional to 788,659.20, 1,182,988.80 and 490,060.80

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Solution

The fourth proportional to 788,659.20, 1,182,988.80 and 490,060.80 is: 735,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,659.20 : 1,182,988.80 = 490,060.80 : x
  2. Step 2: Convert to fraction form
    788,659.20/1,182,988.80 = 490,060.80/x
  3. Step 3: Cross multiply
    788,659.20x = 1,182,988.80 × 490,060.80
  4. Step 4: Simplify right side
    788,659.20x = 579,736,437,719.04
  5. Step 5: Solve for x
    x = 579,736,437,719.04/788,659.20
  6. Step 6: Final answer
    x = 735,091.20

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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.