Home / 459,040.30-688,505.67-122,105.61

Finding the Fourth Proportional to 459,040.30, 688,505.67 and 122,105.61

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Solution

The fourth proportional to 459,040.30, 688,505.67 and 122,105.61 is: 183,143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,040.30 : 688,505.67 = 122,105.61 : x
  2. Step 2: Convert to fraction form
    459,040.30/688,505.67 = 122,105.61/x
  3. Step 3: Cross multiply
    459,040.30x = 688,505.67 × 122,105.61
  4. Step 4: Simplify right side
    459,040.30x = 84,070,404,823.81
  5. Step 5: Solve for x
    x = 84,070,404,823.81/459,040.30
  6. Step 6: Final answer
    x = 183,143.84

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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.