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Finding the Fourth Proportional to 491,741.80, 736,640.70 and 433,292.20

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Solution

The fourth proportional to 491,741.80, 736,640.70 and 433,292.20 is: 649,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,741.80 : 736,640.70 = 433,292.20 : x
  2. Step 2: Convert to fraction form
    491,741.80/736,640.70 = 433,292.20/x
  3. Step 3: Cross multiply
    491,741.80x = 736,640.70 × 433,292.20
  4. Step 4: Simplify right side
    491,741.80x = 319,180,669,512.54
  5. Step 5: Solve for x
    x = 319,180,669,512.54/491,741.80
  6. Step 6: Final answer
    x = 649,081.83

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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.