Home / 1,109,651.68-1,531,318.80-626,318.20

Finding the Fourth Proportional to 1,109,651.68, 1,531,318.80 and 626,318.20

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Solution

The fourth proportional to 1,109,651.68, 1,531,318.80 and 626,318.20 is: 864,318.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,651.68 : 1,531,318.80 = 626,318.20 : x
  2. Step 2: Convert to fraction form
    1,109,651.68/1,531,318.80 = 626,318.20/x
  3. Step 3: Cross multiply
    1,109,651.68x = 1,531,318.80 × 626,318.20
  4. Step 4: Simplify right side
    1,109,651.68x = 959,092,834,442.16
  5. Step 5: Solve for x
    x = 959,092,834,442.16/1,109,651.68
  6. Step 6: Final answer
    x = 864,318.82

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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.