Home / 658,657.27-908,923.75-372,171.21

Finding the Fourth Proportional to 658,657.27, 908,923.75 and 372,171.21

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Solution

The fourth proportional to 658,657.27, 908,923.75 and 372,171.21 is: 513,583.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,657.27 : 908,923.75 = 372,171.21 : x
  2. Step 2: Convert to fraction form
    658,657.27/908,923.75 = 372,171.21/x
  3. Step 3: Cross multiply
    658,657.27x = 908,923.75 × 372,171.21
  4. Step 4: Simplify right side
    658,657.27x = 338,275,251,835.24
  5. Step 5: Solve for x
    x = 338,275,251,835.24/658,657.27
  6. Step 6: Final answer
    x = 513,583.11

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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.