Home / 712,187.20-1,068,280.80-446,766.40

Finding the Fourth Proportional to 712,187.20, 1,068,280.80 and 446,766.40

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Solution

The fourth proportional to 712,187.20, 1,068,280.80 and 446,766.40 is: 670,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,187.20 : 1,068,280.80 = 446,766.40 : x
  2. Step 2: Convert to fraction form
    712,187.20/1,068,280.80 = 446,766.40/x
  3. Step 3: Cross multiply
    712,187.20x = 1,068,280.80 × 446,766.40
  4. Step 4: Simplify right side
    712,187.20x = 477,271,967,205.12
  5. Step 5: Solve for x
    x = 477,271,967,205.12/712,187.20
  6. Step 6: Final answer
    x = 670,149.60

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Similar ratio
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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.