Home / 986,643.60-1,479,965.40-717,642.60

Finding the Fourth Proportional to 986,643.60, 1,479,965.40 and 717,642.60

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Solution

The fourth proportional to 986,643.60, 1,479,965.40 and 717,642.60 is: 1,076,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,643.60 : 1,479,965.40 = 717,642.60 : x
  2. Step 2: Convert to fraction form
    986,643.60/1,479,965.40 = 717,642.60/x
  3. Step 3: Cross multiply
    986,643.60x = 1,479,965.40 × 717,642.60
  4. Step 4: Simplify right side
    986,643.60x = 1,062,086,217,566.04
  5. Step 5: Solve for x
    x = 1,062,086,217,566.04/986,643.60
  6. Step 6: Final answer
    x = 1,076,463.90

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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.