Home / 688,049.60-1,032,074.40-660,493.40

Finding the Fourth Proportional to 688,049.60, 1,032,074.40 and 660,493.40

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Solution

The fourth proportional to 688,049.60, 1,032,074.40 and 660,493.40 is: 990,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,049.60 : 1,032,074.40 = 660,493.40 : x
  2. Step 2: Convert to fraction form
    688,049.60/1,032,074.40 = 660,493.40/x
  3. Step 3: Cross multiply
    688,049.60x = 1,032,074.40 × 660,493.40
  4. Step 4: Simplify right side
    688,049.60x = 681,678,329,508.96
  5. Step 5: Solve for x
    x = 681,678,329,508.96/688,049.60
  6. Step 6: Final answer
    x = 990,740.10

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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.