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Finding the Fourth Proportional to 659,411.40, 989,117.10 and 238,632.60

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Solution

The fourth proportional to 659,411.40, 989,117.10 and 238,632.60 is: 357,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,411.40 : 989,117.10 = 238,632.60 : x
  2. Step 2: Convert to fraction form
    659,411.40/989,117.10 = 238,632.60/x
  3. Step 3: Cross multiply
    659,411.40x = 989,117.10 × 238,632.60
  4. Step 4: Simplify right side
    659,411.40x = 236,035,585,277.46
  5. Step 5: Solve for x
    x = 236,035,585,277.46/659,411.40
  6. Step 6: Final answer
    x = 357,948.90

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Similar ratio
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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.