Home / 711,987.20-1,065,907.20-691,251.20

Finding the Fourth Proportional to 711,987.20, 1,065,907.20 and 691,251.20

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Solution

The fourth proportional to 711,987.20, 1,065,907.20 and 691,251.20 is: 1,034,863.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,987.20 : 1,065,907.20 = 691,251.20 : x
  2. Step 2: Convert to fraction form
    711,987.20/1,065,907.20 = 691,251.20/x
  3. Step 3: Cross multiply
    711,987.20x = 1,065,907.20 × 691,251.20
  4. Step 4: Simplify right side
    711,987.20x = 736,809,631,088.64
  5. Step 5: Solve for x
    x = 736,809,631,088.64/711,987.20
  6. Step 6: Final answer
    x = 1,034,863.59

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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.