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Finding the Fourth Proportional to 487,997.28, 732,246.48 and 369,629.28

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Solution

The fourth proportional to 487,997.28, 732,246.48 and 369,629.28 is: 554,633.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,997.28 : 732,246.48 = 369,629.28 : x
  2. Step 2: Convert to fraction form
    487,997.28/732,246.48 = 369,629.28/x
  3. Step 3: Cross multiply
    487,997.28x = 732,246.48 × 369,629.28
  4. Step 4: Simplify right side
    487,997.28x = 270,659,739,184.93
  5. Step 5: Solve for x
    x = 270,659,739,184.93/487,997.28
  6. Step 6: Final answer
    x = 554,633.70

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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.