Home / 1,251,131.48-1,726,515.17-678,159.35

Finding the Fourth Proportional to 1,251,131.48, 1,726,515.17 and 678,159.35

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Solution

The fourth proportional to 1,251,131.48, 1,726,515.17 and 678,159.35 is: 935,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,131.48 : 1,726,515.17 = 678,159.35 : x
  2. Step 2: Convert to fraction form
    1,251,131.48/1,726,515.17 = 678,159.35/x
  3. Step 3: Cross multiply
    1,251,131.48x = 1,726,515.17 × 678,159.35
  4. Step 4: Simplify right side
    1,251,131.48x = 1,170,852,402,446.50
  5. Step 5: Solve for x
    x = 1,170,852,402,446.50/1,251,131.48
  6. Step 6: Final answer
    x = 935,834.82

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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.