Home / 689,675.04-951,438.96-498,385.44

Finding the Fourth Proportional to 689,675.04, 951,438.96 and 498,385.44

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Solution

The fourth proportional to 689,675.04, 951,438.96 and 498,385.44 is: 687,546.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,675.04 : 951,438.96 = 498,385.44 : x
  2. Step 2: Convert to fraction form
    689,675.04/951,438.96 = 498,385.44/x
  3. Step 3: Cross multiply
    689,675.04x = 951,438.96 × 498,385.44
  4. Step 4: Simplify right side
    689,675.04x = 474,183,324,712.74
  5. Step 5: Solve for x
    x = 474,183,324,712.74/689,675.04
  6. Step 6: Final answer
    x = 687,546.01

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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.