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Finding the Fourth Proportional to 487,266.60, 730,899.90 and 369,168.60

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Solution

The fourth proportional to 487,266.60, 730,899.90 and 369,168.60 is: 553,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,266.60 : 730,899.90 = 369,168.60 : x
  2. Step 2: Convert to fraction form
    487,266.60/730,899.90 = 369,168.60/x
  3. Step 3: Cross multiply
    487,266.60x = 730,899.90 × 369,168.60
  4. Step 4: Simplify right side
    487,266.60x = 269,825,292,823.14
  5. Step 5: Solve for x
    x = 269,825,292,823.14/487,266.60
  6. Step 6: Final answer
    x = 553,752.90

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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.