Home / 838,661.52-1,157,172.36-499,063.44

Finding the Fourth Proportional to 838,661.52, 1,157,172.36 and 499,063.44

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Solution

The fourth proportional to 838,661.52, 1,157,172.36 and 499,063.44 is: 688,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,661.52 : 1,157,172.36 = 499,063.44 : x
  2. Step 2: Convert to fraction form
    838,661.52/1,157,172.36 = 499,063.44/x
  3. Step 3: Cross multiply
    838,661.52x = 1,157,172.36 × 499,063.44
  4. Step 4: Simplify right side
    838,661.52x = 577,502,418,654.52
  5. Step 5: Solve for x
    x = 577,502,418,654.52/838,661.52
  6. Step 6: Final answer
    x = 688,600.11

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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.