Home / 1,279,601.46-1,919,205.36-426,687.93

Finding the Fourth Proportional to 1,279,601.46, 1,919,205.36 and 426,687.93

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Solution

The fourth proportional to 1,279,601.46, 1,919,205.36 and 426,687.93 is: 639,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,601.46 : 1,919,205.36 = 426,687.93 : x
  2. Step 2: Convert to fraction form
    1,279,601.46/1,919,205.36 = 426,687.93/x
  3. Step 3: Cross multiply
    1,279,601.46x = 1,919,205.36 × 426,687.93
  4. Step 4: Simplify right side
    1,279,601.46x = 818,901,762,303.31
  5. Step 5: Solve for x
    x = 818,901,762,303.31/1,279,601.46
  6. Step 6: Final answer
    x = 639,966.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.