Home / 409,123.17-613,479.52-238,400.18

Finding the Fourth Proportional to 409,123.17, 613,479.52 and 238,400.18

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Solution

The fourth proportional to 409,123.17, 613,479.52 and 238,400.18 is: 357,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,123.17 : 613,479.52 = 238,400.18 : x
  2. Step 2: Convert to fraction form
    409,123.17/613,479.52 = 238,400.18/x
  3. Step 3: Cross multiply
    409,123.17x = 613,479.52 × 238,400.18
  4. Step 4: Simplify right side
    409,123.17x = 146,253,627,525.46
  5. Step 5: Solve for x
    x = 146,253,627,525.46/409,123.17
  6. Step 6: Final answer
    x = 357,480.68

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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.