Home / 915,935.80-1,374,006.10-284,844.60

Finding the Fourth Proportional to 915,935.80, 1,374,006.10 and 284,844.60

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Solution

The fourth proportional to 915,935.80, 1,374,006.10 and 284,844.60 is: 427,298.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,935.80 : 1,374,006.10 = 284,844.60 : x
  2. Step 2: Convert to fraction form
    915,935.80/1,374,006.10 = 284,844.60/x
  3. Step 3: Cross multiply
    915,935.80x = 1,374,006.10 × 284,844.60
  4. Step 4: Simplify right side
    915,935.80x = 391,378,217,952.06
  5. Step 5: Solve for x
    x = 391,378,217,952.06/915,935.80
  6. Step 6: Final answer
    x = 427,298.75

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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.