Home / 860,331.38-1,187,250.10-478,354.82

Finding the Fourth Proportional to 860,331.38, 1,187,250.10 and 478,354.82

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Solution

The fourth proportional to 860,331.38, 1,187,250.10 and 478,354.82 is: 660,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,331.38 : 1,187,250.10 = 478,354.82 : x
  2. Step 2: Convert to fraction form
    860,331.38/1,187,250.10 = 478,354.82/x
  3. Step 3: Cross multiply
    860,331.38x = 1,187,250.10 × 478,354.82
  4. Step 4: Simplify right side
    860,331.38x = 567,926,807,880.48
  5. Step 5: Solve for x
    x = 567,926,807,880.48/860,331.38
  6. Step 6: Final answer
    x = 660,125.65

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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.