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Finding the Fourth Proportional to 672,473.28, 928,007.04 and 366,549.60

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Solution

The fourth proportional to 672,473.28, 928,007.04 and 366,549.60 is: 505,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,473.28 : 928,007.04 = 366,549.60 : x
  2. Step 2: Convert to fraction form
    672,473.28/928,007.04 = 366,549.60/x
  3. Step 3: Cross multiply
    672,473.28x = 928,007.04 × 366,549.60
  4. Step 4: Simplify right side
    672,473.28x = 340,160,609,309.18
  5. Step 5: Solve for x
    x = 340,160,609,309.18/672,473.28
  6. Step 6: Final answer
    x = 505,835.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.