Home / 683,721.30-1,026,505.35-399,702.90

Finding the Fourth Proportional to 683,721.30, 1,026,505.35 and 399,702.90

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Solution

The fourth proportional to 683,721.30, 1,026,505.35 and 399,702.90 is: 600,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,721.30 : 1,026,505.35 = 399,702.90 : x
  2. Step 2: Convert to fraction form
    683,721.30/1,026,505.35 = 399,702.90/x
  3. Step 3: Cross multiply
    683,721.30x = 1,026,505.35 × 399,702.90
  4. Step 4: Simplify right side
    683,721.30x = 410,297,165,260.52
  5. Step 5: Solve for x
    x = 410,297,165,260.52/683,721.30
  6. Step 6: Final answer
    x = 600,094.17

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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.