Home / 485,450.76-669,944.73-270,592.39

Finding the Fourth Proportional to 485,450.76, 669,944.73 and 270,592.39

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Solution

The fourth proportional to 485,450.76, 669,944.73 and 270,592.39 is: 373,430.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,450.76 : 669,944.73 = 270,592.39 : x
  2. Step 2: Convert to fraction form
    485,450.76/669,944.73 = 270,592.39/x
  3. Step 3: Cross multiply
    485,450.76x = 669,944.73 × 270,592.39
  4. Step 4: Simplify right side
    485,450.76x = 181,281,945,658.61
  5. Step 5: Solve for x
    x = 181,281,945,658.61/485,450.76
  6. Step 6: Final answer
    x = 373,430.14

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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.