Home / 724,234.05-1,085,421.60-404,385.30

Finding the Fourth Proportional to 724,234.05, 1,085,421.60 and 404,385.30

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Solution

The fourth proportional to 724,234.05, 1,085,421.60 and 404,385.30 is: 606,058.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,234.05 : 1,085,421.60 = 404,385.30 : x
  2. Step 2: Convert to fraction form
    724,234.05/1,085,421.60 = 404,385.30/x
  3. Step 3: Cross multiply
    724,234.05x = 1,085,421.60 × 404,385.30
  4. Step 4: Simplify right side
    724,234.05x = 438,928,539,342.48
  5. Step 5: Solve for x
    x = 438,928,539,342.48/724,234.05
  6. Step 6: Final answer
    x = 606,058.97

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Double scale
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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.