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Finding the Fourth Proportional to 484,673.40, 727,010.10 and 218,952.90

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Solution

The fourth proportional to 484,673.40, 727,010.10 and 218,952.90 is: 328,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,673.40 : 727,010.10 = 218,952.90 : x
  2. Step 2: Convert to fraction form
    484,673.40/727,010.10 = 218,952.90/x
  3. Step 3: Cross multiply
    484,673.40x = 727,010.10 × 218,952.90
  4. Step 4: Simplify right side
    484,673.40x = 159,180,969,724.29
  5. Step 5: Solve for x
    x = 159,180,969,724.29/484,673.40
  6. Step 6: Final answer
    x = 328,429.35

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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.