Home / 864,578.04-1,193,218.89-719,127.20

Finding the Fourth Proportional to 864,578.04, 1,193,218.89 and 719,127.20

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Solution

The fourth proportional to 864,578.04, 1,193,218.89 and 719,127.20 is: 992,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,578.04 : 1,193,218.89 = 719,127.20 : x
  2. Step 2: Convert to fraction form
    864,578.04/1,193,218.89 = 719,127.20/x
  3. Step 3: Cross multiply
    864,578.04x = 1,193,218.89 × 719,127.20
  4. Step 4: Simplify right side
    864,578.04x = 858,076,159,352.81
  5. Step 5: Solve for x
    x = 858,076,159,352.81/864,578.04
  6. Step 6: Final answer
    x = 992,479.71

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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.