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Finding the Fourth Proportional to 664,689.60, 997,034.40 and 452,113.20

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Solution

The fourth proportional to 664,689.60, 997,034.40 and 452,113.20 is: 678,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,689.60 : 997,034.40 = 452,113.20 : x
  2. Step 2: Convert to fraction form
    664,689.60/997,034.40 = 452,113.20/x
  3. Step 3: Cross multiply
    664,689.60x = 997,034.40 × 452,113.20
  4. Step 4: Simplify right side
    664,689.60x = 450,772,413,094.08
  5. Step 5: Solve for x
    x = 450,772,413,094.08/664,689.60
  6. Step 6: Final answer
    x = 678,169.80

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Double scale
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Similar ratio
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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.