Home / 864,577.23-1,193,217.78-719,126.40

Finding the Fourth Proportional to 864,577.23, 1,193,217.78 and 719,126.40

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Solution

The fourth proportional to 864,577.23, 1,193,217.78 and 719,126.40 is: 992,478.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,577.23 : 1,193,217.78 = 719,126.40 : x
  2. Step 2: Convert to fraction form
    864,577.23/1,193,217.78 = 719,126.40/x
  3. Step 3: Cross multiply
    864,577.23x = 1,193,217.78 × 719,126.40
  4. Step 4: Simplify right side
    864,577.23x = 858,074,406,547.39
  5. Step 5: Solve for x
    x = 858,074,406,547.39/864,577.23
  6. Step 6: Final answer
    x = 992,478.61

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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.