Home / 1,136,841.72-1,564,859.51-991,390.88

Finding the Fourth Proportional to 1,136,841.72, 1,564,859.51 and 991,390.88

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Solution

The fourth proportional to 1,136,841.72, 1,564,859.51 and 991,390.88 is: 1,364,646.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,841.72 : 1,564,859.51 = 991,390.88 : x
  2. Step 2: Convert to fraction form
    1,136,841.72/1,564,859.51 = 991,390.88/x
  3. Step 3: Cross multiply
    1,136,841.72x = 1,564,859.51 × 991,390.88
  4. Step 4: Simplify right side
    1,136,841.72x = 1,551,387,446,695.27
  5. Step 5: Solve for x
    x = 1,551,387,446,695.27/1,136,841.72
  6. Step 6: Final answer
    x = 1,364,646.83

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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.