Home / 1,286,287.62-1,775,064.78-705,498.92

Finding the Fourth Proportional to 1,286,287.62, 1,775,064.78 and 705,498.92

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Solution

The fourth proportional to 1,286,287.62, 1,775,064.78 and 705,498.92 is: 973,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,287.62 : 1,775,064.78 = 705,498.92 : x
  2. Step 2: Convert to fraction form
    1,286,287.62/1,775,064.78 = 705,498.92/x
  3. Step 3: Cross multiply
    1,286,287.62x = 1,775,064.78 × 705,498.92
  4. Step 4: Simplify right side
    1,286,287.62x = 1,252,306,276,344.71
  5. Step 5: Solve for x
    x = 1,252,306,276,344.71/1,286,287.62
  6. Step 6: Final answer
    x = 973,581.85

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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.