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Finding the Fourth Proportional to 551,000.80, 826,501.20 and 372,541.60

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Solution

The fourth proportional to 551,000.80, 826,501.20 and 372,541.60 is: 558,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,000.80 : 826,501.20 = 372,541.60 : x
  2. Step 2: Convert to fraction form
    551,000.80/826,501.20 = 372,541.60/x
  3. Step 3: Cross multiply
    551,000.80x = 826,501.20 × 372,541.60
  4. Step 4: Simplify right side
    551,000.80x = 307,906,079,449.92
  5. Step 5: Solve for x
    x = 307,906,079,449.92/551,000.80
  6. Step 6: Final answer
    x = 558,812.40

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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.