Home / 671,444.60-1,007,166.90-664,446.20

Finding the Fourth Proportional to 671,444.60, 1,007,166.90 and 664,446.20

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Solution

The fourth proportional to 671,444.60, 1,007,166.90 and 664,446.20 is: 996,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,444.60 : 1,007,166.90 = 664,446.20 : x
  2. Step 2: Convert to fraction form
    671,444.60/1,007,166.90 = 664,446.20/x
  3. Step 3: Cross multiply
    671,444.60x = 1,007,166.90 × 664,446.20
  4. Step 4: Simplify right side
    671,444.60x = 669,208,219,470.78
  5. Step 5: Solve for x
    x = 669,208,219,470.78/671,444.60
  6. Step 6: Final answer
    x = 996,669.30

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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.