Home / 676,876.40-1,015,314.60-618,815.60

Finding the Fourth Proportional to 676,876.40, 1,015,314.60 and 618,815.60

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Solution

The fourth proportional to 676,876.40, 1,015,314.60 and 618,815.60 is: 928,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,876.40 : 1,015,314.60 = 618,815.60 : x
  2. Step 2: Convert to fraction form
    676,876.40/1,015,314.60 = 618,815.60/x
  3. Step 3: Cross multiply
    676,876.40x = 1,015,314.60 × 618,815.60
  4. Step 4: Simplify right side
    676,876.40x = 628,292,513,387.76
  5. Step 5: Solve for x
    x = 628,292,513,387.76/676,876.40
  6. Step 6: Final answer
    x = 928,223.40

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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.