Home / 708,098.24-976,729.04-421,404.32

Finding the Fourth Proportional to 708,098.24, 976,729.04 and 421,404.32

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Solution

The fourth proportional to 708,098.24, 976,729.04 and 421,404.32 is: 581,272.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,098.24 : 976,729.04 = 421,404.32 : x
  2. Step 2: Convert to fraction form
    708,098.24/976,729.04 = 421,404.32/x
  3. Step 3: Cross multiply
    708,098.24x = 976,729.04 × 421,404.32
  4. Step 4: Simplify right side
    708,098.24x = 411,597,836,925.45
  5. Step 5: Solve for x
    x = 411,597,836,925.45/708,098.24
  6. Step 6: Final answer
    x = 581,272.22

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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.