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Finding the Fourth Proportional to 491,821.20, 736,419.60 and 491,821.20

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Solution

The fourth proportional to 491,821.20, 736,419.60 and 491,821.20 is: 736,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,821.20 : 736,419.60 = 491,821.20 : x
  2. Step 2: Convert to fraction form
    491,821.20/736,419.60 = 491,821.20/x
  3. Step 3: Cross multiply
    491,821.20x = 736,419.60 × 491,821.20
  4. Step 4: Simplify right side
    491,821.20x = 362,186,771,375.52
  5. Step 5: Solve for x
    x = 362,186,771,375.52/491,821.20
  6. Step 6: Final answer
    x = 736,419.60

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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.