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Finding the Fourth Proportional to 868,287.79, 1,197,578.19 and 760,671.01

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Solution

The fourth proportional to 868,287.79, 1,197,578.19 and 760,671.01 is: 1,049,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,287.79 : 1,197,578.19 = 760,671.01 : x
  2. Step 2: Convert to fraction form
    868,287.79/1,197,578.19 = 760,671.01/x
  3. Step 3: Cross multiply
    868,287.79x = 1,197,578.19 × 760,671.01
  4. Step 4: Simplify right side
    868,287.79x = 910,963,011,341.27
  5. Step 5: Solve for x
    x = 910,963,011,341.27/868,287.79
  6. Step 6: Final answer
    x = 1,049,148.71

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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.