Home / 883,128.30-1,323,331.65-657,429.90

Finding the Fourth Proportional to 883,128.30, 1,323,331.65 and 657,429.90

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Solution

The fourth proportional to 883,128.30, 1,323,331.65 and 657,429.90 is: 985,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,128.30 : 1,323,331.65 = 657,429.90 : x
  2. Step 2: Convert to fraction form
    883,128.30/1,323,331.65 = 657,429.90/x
  3. Step 3: Cross multiply
    883,128.30x = 1,323,331.65 × 657,429.90
  4. Step 4: Simplify right side
    883,128.30x = 869,997,794,326.34
  5. Step 5: Solve for x
    x = 869,997,794,326.34/883,128.30
  6. Step 6: Final answer
    x = 985,131.83

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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.