Home / 649,280.80-973,921.20-294,986.80

Finding the Fourth Proportional to 649,280.80, 973,921.20 and 294,986.80

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Solution

The fourth proportional to 649,280.80, 973,921.20 and 294,986.80 is: 442,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,280.80 : 973,921.20 = 294,986.80 : x
  2. Step 2: Convert to fraction form
    649,280.80/973,921.20 = 294,986.80/x
  3. Step 3: Cross multiply
    649,280.80x = 973,921.20 × 294,986.80
  4. Step 4: Simplify right side
    649,280.80x = 287,293,898,240.16
  5. Step 5: Solve for x
    x = 287,293,898,240.16/649,280.80
  6. Step 6: Final answer
    x = 442,480.20

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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.