Home / 551,217.12-760,740.57-321,830.79

Finding the Fourth Proportional to 551,217.12, 760,740.57 and 321,830.79

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Solution

The fourth proportional to 551,217.12, 760,740.57 and 321,830.79 is: 444,162.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,217.12 : 760,740.57 = 321,830.79 : x
  2. Step 2: Convert to fraction form
    551,217.12/760,740.57 = 321,830.79/x
  3. Step 3: Cross multiply
    551,217.12x = 760,740.57 × 321,830.79
  4. Step 4: Simplify right side
    551,217.12x = 244,829,737,019.00
  5. Step 5: Solve for x
    x = 244,829,737,019.00/551,217.12
  6. Step 6: Final answer
    x = 444,162.07

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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.