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Finding the Fourth Proportional to 625,617.60, 938,426.40 and 546,885.60

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Solution

The fourth proportional to 625,617.60, 938,426.40 and 546,885.60 is: 820,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,617.60 : 938,426.40 = 546,885.60 : x
  2. Step 2: Convert to fraction form
    625,617.60/938,426.40 = 546,885.60/x
  3. Step 3: Cross multiply
    625,617.60x = 938,426.40 × 546,885.60
  4. Step 4: Simplify right side
    625,617.60x = 513,211,884,819.84
  5. Step 5: Solve for x
    x = 513,211,884,819.84/625,617.60
  6. Step 6: Final answer
    x = 820,328.40

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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.