Home / 1,680,432.64-2,520,636-418,251.76

Finding the Fourth Proportional to 1,680,432.64, 2,520,636 and 418,251.76

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Solution

The fourth proportional to 1,680,432.64, 2,520,636 and 418,251.76 is: 627,374.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,432.64 : 2,520,636 = 418,251.76 : x
  2. Step 2: Convert to fraction form
    1,680,432.64/2,520,636 = 418,251.76/x
  3. Step 3: Cross multiply
    1,680,432.64x = 2,520,636 × 418,251.76
  4. Step 4: Simplify right side
    1,680,432.64x = 1,054,260,443,319.36
  5. Step 5: Solve for x
    x = 1,054,260,443,319.36/1,680,432.64
  6. Step 6: Final answer
    x = 627,374.41

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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.