Home / 911,281.36-1,367,214.52-438,001.04

Finding the Fourth Proportional to 911,281.36, 1,367,214.52 and 438,001.04

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Solution

The fourth proportional to 911,281.36, 1,367,214.52 and 438,001.04 is: 657,142.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,281.36 : 1,367,214.52 = 438,001.04 : x
  2. Step 2: Convert to fraction form
    911,281.36/1,367,214.52 = 438,001.04/x
  3. Step 3: Cross multiply
    911,281.36x = 1,367,214.52 × 438,001.04
  4. Step 4: Simplify right side
    911,281.36x = 598,841,381,663.10
  5. Step 5: Solve for x
    x = 598,841,381,663.10/911,281.36
  6. Step 6: Final answer
    x = 657,142.14

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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.