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Finding the Fourth Proportional to 1,304,919.07, 1,800,784.62 and 724,229.87

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Solution

The fourth proportional to 1,304,919.07, 1,800,784.62 and 724,229.87 is: 999,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304,919.07 : 1,800,784.62 = 724,229.87 : x
  2. Step 2: Convert to fraction form
    1,304,919.07/1,800,784.62 = 724,229.87/x
  3. Step 3: Cross multiply
    1,304,919.07x = 1,800,784.62 × 724,229.87
  4. Step 4: Simplify right side
    1,304,919.07x = 1,304,182,011,240.60
  5. Step 5: Solve for x
    x = 1,304,182,011,240.60/1,304,919.07
  6. Step 6: Final answer
    x = 999,435.17

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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.