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Finding the Fourth Proportional to 486,006.60, 729,009.90 and 366,256.20

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Solution

The fourth proportional to 486,006.60, 729,009.90 and 366,256.20 is: 549,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,006.60 : 729,009.90 = 366,256.20 : x
  2. Step 2: Convert to fraction form
    486,006.60/729,009.90 = 366,256.20/x
  3. Step 3: Cross multiply
    486,006.60x = 729,009.90 × 366,256.20
  4. Step 4: Simplify right side
    486,006.60x = 267,004,395,736.38
  5. Step 5: Solve for x
    x = 267,004,395,736.38/486,006.60
  6. Step 6: Final answer
    x = 549,384.30

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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.