Home / 691,432.80-1,037,149.20-617,949.60

Finding the Fourth Proportional to 691,432.80, 1,037,149.20 and 617,949.60

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Solution

The fourth proportional to 691,432.80, 1,037,149.20 and 617,949.60 is: 926,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,432.80 : 1,037,149.20 = 617,949.60 : x
  2. Step 2: Convert to fraction form
    691,432.80/1,037,149.20 = 617,949.60/x
  3. Step 3: Cross multiply
    691,432.80x = 1,037,149.20 × 617,949.60
  4. Step 4: Simplify right side
    691,432.80x = 640,905,933,280.32
  5. Step 5: Solve for x
    x = 640,905,933,280.32/691,432.80
  6. Step 6: Final answer
    x = 926,924.40

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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.