Home / 581,385.32-802,131.42-339,493.40

Finding the Fourth Proportional to 581,385.32, 802,131.42 and 339,493.40

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Solution

The fourth proportional to 581,385.32, 802,131.42 and 339,493.40 is: 468,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,385.32 : 802,131.42 = 339,493.40 : x
  2. Step 2: Convert to fraction form
    581,385.32/802,131.42 = 339,493.40/x
  3. Step 3: Cross multiply
    581,385.32x = 802,131.42 × 339,493.40
  4. Step 4: Simplify right side
    581,385.32x = 272,318,321,017.30
  5. Step 5: Solve for x
    x = 272,318,321,017.30/581,385.32
  6. Step 6: Final answer
    x = 468,395.59

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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.