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Finding the Fourth Proportional to 658,632.39, 908,900.85 and 372,146.32

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Solution

The fourth proportional to 658,632.39, 908,900.85 and 372,146.32 is: 513,555.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,632.39 : 908,900.85 = 372,146.32 : x
  2. Step 2: Convert to fraction form
    658,632.39/908,900.85 = 372,146.32/x
  3. Step 3: Cross multiply
    658,632.39x = 908,900.85 × 372,146.32
  4. Step 4: Simplify right side
    658,632.39x = 338,244,106,572.37
  5. Step 5: Solve for x
    x = 338,244,106,572.37/658,632.39
  6. Step 6: Final answer
    x = 513,555.23

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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.