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Finding the Fourth Proportional to 486,005.20, 727,695.60 and 486,005.20

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Solution

The fourth proportional to 486,005.20, 727,695.60 and 486,005.20 is: 727,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,005.20 : 727,695.60 = 486,005.20 : x
  2. Step 2: Convert to fraction form
    486,005.20/727,695.60 = 486,005.20/x
  3. Step 3: Cross multiply
    486,005.20x = 727,695.60 × 486,005.20
  4. Step 4: Simplify right side
    486,005.20x = 353,663,845,617.12
  5. Step 5: Solve for x
    x = 353,663,845,617.12/486,005.20
  6. Step 6: Final answer
    x = 727,695.60

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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.