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Finding the Fourth Proportional to 893,117.80, 1,339,655.10 and 537,862.60

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Solution

The fourth proportional to 893,117.80, 1,339,655.10 and 537,862.60 is: 806,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,117.80 : 1,339,655.10 = 537,862.60 : x
  2. Step 2: Convert to fraction form
    893,117.80/1,339,655.10 = 537,862.60/x
  3. Step 3: Cross multiply
    893,117.80x = 1,339,655.10 × 537,862.60
  4. Step 4: Simplify right side
    893,117.80x = 720,550,375,189.26
  5. Step 5: Solve for x
    x = 720,550,375,189.26/893,117.80
  6. Step 6: Final answer
    x = 806,780.89

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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.