Home / 1,025,999.90-1,538,999.85-278,045.90

Finding the Fourth Proportional to 1,025,999.90, 1,538,999.85 and 278,045.90

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Solution

The fourth proportional to 1,025,999.90, 1,538,999.85 and 278,045.90 is: 417,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,999.90 : 1,538,999.85 = 278,045.90 : x
  2. Step 2: Convert to fraction form
    1,025,999.90/1,538,999.85 = 278,045.90/x
  3. Step 3: Cross multiply
    1,025,999.90x = 1,538,999.85 × 278,045.90
  4. Step 4: Simplify right side
    1,025,999.90x = 427,912,598,393.12
  5. Step 5: Solve for x
    x = 427,912,598,393.12/1,025,999.90
  6. Step 6: Final answer
    x = 417,068.85

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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.