Home / 955,715.13-1,318,861.89-520,141.19

Finding the Fourth Proportional to 955,715.13, 1,318,861.89 and 520,141.19

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Solution

The fourth proportional to 955,715.13, 1,318,861.89 and 520,141.19 is: 717,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,715.13 : 1,318,861.89 = 520,141.19 : x
  2. Step 2: Convert to fraction form
    955,715.13/1,318,861.89 = 520,141.19/x
  3. Step 3: Cross multiply
    955,715.13x = 1,318,861.89 × 520,141.19
  4. Step 4: Simplify right side
    955,715.13x = 685,994,386,315.94
  5. Step 5: Solve for x
    x = 685,994,386,315.94/955,715.13
  6. Step 6: Final answer
    x = 717,781.23

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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.