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Finding the Fourth Proportional to 669,635.76, 924,268.68 and 415,205.04

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Solution

The fourth proportional to 669,635.76, 924,268.68 and 415,205.04 is: 573,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,635.76 : 924,268.68 = 415,205.04 : x
  2. Step 2: Convert to fraction form
    669,635.76/924,268.68 = 415,205.04/x
  3. Step 3: Cross multiply
    669,635.76x = 924,268.68 × 415,205.04
  4. Step 4: Simplify right side
    669,635.76x = 383,761,014,250.15
  5. Step 5: Solve for x
    x = 383,761,014,250.15/669,635.76
  6. Step 6: Final answer
    x = 573,089.19

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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.