Home / 753,432.20-1,131,023.10-433,838.60

Finding the Fourth Proportional to 753,432.20, 1,131,023.10 and 433,838.60

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Solution

The fourth proportional to 753,432.20, 1,131,023.10 and 433,838.60 is: 651,261.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,432.20 : 1,131,023.10 = 433,838.60 : x
  2. Step 2: Convert to fraction form
    753,432.20/1,131,023.10 = 433,838.60/x
  3. Step 3: Cross multiply
    753,432.20x = 1,131,023.10 × 433,838.60
  4. Step 4: Simplify right side
    753,432.20x = 490,681,478,271.66
  5. Step 5: Solve for x
    x = 490,681,478,271.66/753,432.20
  6. Step 6: Final answer
    x = 651,261.62

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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.