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Finding the Fourth Proportional to 661,552.50, 912,914.88 and 375,091.94

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Solution

The fourth proportional to 661,552.50, 912,914.88 and 375,091.94 is: 517,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,552.50 : 912,914.88 = 375,091.94 : x
  2. Step 2: Convert to fraction form
    661,552.50/912,914.88 = 375,091.94/x
  3. Step 3: Cross multiply
    661,552.50x = 912,914.88 × 375,091.94
  4. Step 4: Simplify right side
    661,552.50x = 342,427,013,394.07
  5. Step 5: Solve for x
    x = 342,427,013,394.07/661,552.50
  6. Step 6: Final answer
    x = 517,611.25

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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.