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Finding the Fourth Proportional to 1,252,047, 1,727,824.86 and 715,503

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Solution

The fourth proportional to 1,252,047, 1,727,824.86 and 715,503 is: 987,394.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,047 : 1,727,824.86 = 715,503 : x
  2. Step 2: Convert to fraction form
    1,252,047/1,727,824.86 = 715,503/x
  3. Step 3: Cross multiply
    1,252,047x = 1,727,824.86 × 715,503
  4. Step 4: Simplify right side
    1,252,047x = 1,236,263,870,804.58
  5. Step 5: Solve for x
    x = 1,236,263,870,804.58/1,252,047
  6. Step 6: Final answer
    x = 987,394.14

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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.