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Finding the Fourth Proportional to 491,151.60, 736,727.40 and 341,560.80

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Solution

The fourth proportional to 491,151.60, 736,727.40 and 341,560.80 is: 512,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,151.60 : 736,727.40 = 341,560.80 : x
  2. Step 2: Convert to fraction form
    491,151.60/736,727.40 = 341,560.80/x
  3. Step 3: Cross multiply
    491,151.60x = 736,727.40 × 341,560.80
  4. Step 4: Simplify right side
    491,151.60x = 251,637,200,125.92
  5. Step 5: Solve for x
    x = 251,637,200,125.92/491,151.60
  6. Step 6: Final answer
    x = 512,341.20

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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.