Home / 986,281.32-1,479,274.02-312,275.25

Finding the Fourth Proportional to 986,281.32, 1,479,274.02 and 312,275.25

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Solution

The fourth proportional to 986,281.32, 1,479,274.02 and 312,275.25 is: 468,366.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,281.32 : 1,479,274.02 = 312,275.25 : x
  2. Step 2: Convert to fraction form
    986,281.32/1,479,274.02 = 312,275.25/x
  3. Step 3: Cross multiply
    986,281.32x = 1,479,274.02 × 312,275.25
  4. Step 4: Simplify right side
    986,281.32x = 461,940,664,414.01
  5. Step 5: Solve for x
    x = 461,940,664,414.01/986,281.32
  6. Step 6: Final answer
    x = 468,366.03

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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.