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Finding the Fourth Proportional to 1,267,323.78, 1,748,839.93 and 723,437.94

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Solution

The fourth proportional to 1,267,323.78, 1,748,839.93 and 723,437.94 is: 998,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,323.78 : 1,748,839.93 = 723,437.94 : x
  2. Step 2: Convert to fraction form
    1,267,323.78/1,748,839.93 = 723,437.94/x
  3. Step 3: Cross multiply
    1,267,323.78x = 1,748,839.93 × 723,437.94
  4. Step 4: Simplify right side
    1,267,323.78x = 1,265,177,156,348.94
  5. Step 5: Solve for x
    x = 1,265,177,156,348.94/1,267,323.78
  6. Step 6: Final answer
    x = 998,306.18

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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.