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Finding the Fourth Proportional to 441,643.92, 609,585.12 and 272,020.20

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Solution

The fourth proportional to 441,643.92, 609,585.12 and 272,020.20 is: 375,459.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,643.92 : 609,585.12 = 272,020.20 : x
  2. Step 2: Convert to fraction form
    441,643.92/609,585.12 = 272,020.20/x
  3. Step 3: Cross multiply
    441,643.92x = 609,585.12 × 272,020.20
  4. Step 4: Simplify right side
    441,643.92x = 165,819,466,259.42
  5. Step 5: Solve for x
    x = 165,819,466,259.42/441,643.92
  6. Step 6: Final answer
    x = 375,459.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.