Home / 687,680.80-1,029,552.90-608,948.80

Finding the Fourth Proportional to 687,680.80, 1,029,552.90 and 608,948.80

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Solution

The fourth proportional to 687,680.80, 1,029,552.90 and 608,948.80 is: 911,680.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,680.80 : 1,029,552.90 = 608,948.80 : x
  2. Step 2: Convert to fraction form
    687,680.80/1,029,552.90 = 608,948.80/x
  3. Step 3: Cross multiply
    687,680.80x = 1,029,552.90 × 608,948.80
  4. Step 4: Simplify right side
    687,680.80x = 626,945,002,991.52
  5. Step 5: Solve for x
    x = 626,945,002,991.52/687,680.80
  6. Step 6: Final answer
    x = 911,680.25

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1.5x scale

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.