Home / 426,339.67-639,572.69-141,937.33

Finding the Fourth Proportional to 426,339.67, 639,572.69 and 141,937.33

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Solution

The fourth proportional to 426,339.67, 639,572.69 and 141,937.33 is: 212,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,339.67 : 639,572.69 = 141,937.33 : x
  2. Step 2: Convert to fraction form
    426,339.67/639,572.69 = 141,937.33/x
  3. Step 3: Cross multiply
    426,339.67x = 639,572.69 × 141,937.33
  4. Step 4: Simplify right side
    426,339.67x = 90,779,239,249.83
  5. Step 5: Solve for x
    x = 90,779,239,249.83/426,339.67
  6. Step 6: Final answer
    x = 212,927.03

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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.