Home / 672,430.28-927,945.62-366,505.72

Finding the Fourth Proportional to 672,430.28, 927,945.62 and 366,505.72

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Solution

The fourth proportional to 672,430.28, 927,945.62 and 366,505.72 is: 505,773.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,430.28 : 927,945.62 = 366,505.72 : x
  2. Step 2: Convert to fraction form
    672,430.28/927,945.62 = 366,505.72/x
  3. Step 3: Cross multiply
    672,430.28x = 927,945.62 × 366,505.72
  4. Step 4: Simplify right side
    672,430.28x = 340,097,378,280.75
  5. Step 5: Solve for x
    x = 340,097,378,280.75/672,430.28
  6. Step 6: Final answer
    x = 505,773.44

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Double scale
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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.