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Finding the Fourth Proportional to 484,854.40, 727,411.20 and 344,886.40

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Solution

The fourth proportional to 484,854.40, 727,411.20 and 344,886.40 is: 517,421.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,854.40 : 727,411.20 = 344,886.40 : x
  2. Step 2: Convert to fraction form
    484,854.40/727,411.20 = 344,886.40/x
  3. Step 3: Cross multiply
    484,854.40x = 727,411.20 × 344,886.40
  4. Step 4: Simplify right side
    484,854.40x = 250,874,230,087.68
  5. Step 5: Solve for x
    x = 250,874,230,087.68/484,854.40
  6. Step 6: Final answer
    x = 517,421.79

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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.