Home / 1,279,685.28-1,919,886.65-560,089.70

Finding the Fourth Proportional to 1,279,685.28, 1,919,886.65 and 560,089.70

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Solution

The fourth proportional to 1,279,685.28, 1,919,886.65 and 560,089.70 is: 840,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,685.28 : 1,919,886.65 = 560,089.70 : x
  2. Step 2: Convert to fraction form
    1,279,685.28/1,919,886.65 = 560,089.70/x
  3. Step 3: Cross multiply
    1,279,685.28x = 1,919,886.65 × 560,089.70
  4. Step 4: Simplify right side
    1,279,685.28x = 1,075,308,725,432.62
  5. Step 5: Solve for x
    x = 1,075,308,725,432.62/1,279,685.28
  6. Step 6: Final answer
    x = 840,291.55

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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.