Home / 898,186.91-1,239,312.83-516,139.88

Finding the Fourth Proportional to 898,186.91, 1,239,312.83 and 516,139.88

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Solution

The fourth proportional to 898,186.91, 1,239,312.83 and 516,139.88 is: 712,166.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,186.91 : 1,239,312.83 = 516,139.88 : x
  2. Step 2: Convert to fraction form
    898,186.91/1,239,312.83 = 516,139.88/x
  3. Step 3: Cross multiply
    898,186.91x = 1,239,312.83 × 516,139.88
  4. Step 4: Simplify right side
    898,186.91x = 639,658,766,581.40
  5. Step 5: Solve for x
    x = 639,658,766,581.40/898,186.91
  6. Step 6: Final answer
    x = 712,166.66

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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.