Home / 988,285.80-1,363,980.68-625,743.30

Finding the Fourth Proportional to 988,285.80, 1,363,980.68 and 625,743.30

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Solution

The fourth proportional to 988,285.80, 1,363,980.68 and 625,743.30 is: 863,618.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,285.80 : 1,363,980.68 = 625,743.30 : x
  2. Step 2: Convert to fraction form
    988,285.80/1,363,980.68 = 625,743.30/x
  3. Step 3: Cross multiply
    988,285.80x = 1,363,980.68 × 625,743.30
  4. Step 4: Simplify right side
    988,285.80x = 853,501,761,890.82
  5. Step 5: Solve for x
    x = 853,501,761,890.82/988,285.80
  6. Step 6: Final answer
    x = 863,618.36

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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.