Home / 1,120,972.82-1,681,412.19-521,727.86

Finding the Fourth Proportional to 1,120,972.82, 1,681,412.19 and 521,727.86

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Solution

The fourth proportional to 1,120,972.82, 1,681,412.19 and 521,727.86 is: 782,569.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,972.82 : 1,681,412.19 = 521,727.86 : x
  2. Step 2: Convert to fraction form
    1,120,972.82/1,681,412.19 = 521,727.86/x
  3. Step 3: Cross multiply
    1,120,972.82x = 1,681,412.19 × 521,727.86
  4. Step 4: Simplify right side
    1,120,972.82x = 877,239,583,666.61
  5. Step 5: Solve for x
    x = 877,239,583,666.61/1,120,972.82
  6. Step 6: Final answer
    x = 782,569.90

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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.