Home / 986,282.32-1,479,275.52-312,276.25

Finding the Fourth Proportional to 986,282.32, 1,479,275.52 and 312,276.25

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Solution

The fourth proportional to 986,282.32, 1,479,275.52 and 312,276.25 is: 468,367.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,282.32 : 1,479,275.52 = 312,276.25 : x
  2. Step 2: Convert to fraction form
    986,282.32/1,479,275.52 = 312,276.25/x
  3. Step 3: Cross multiply
    986,282.32x = 1,479,275.52 × 312,276.25
  4. Step 4: Simplify right side
    986,282.32x = 461,942,612,102.40
  5. Step 5: Solve for x
    x = 461,942,612,102.40/986,282.32
  6. Step 6: Final answer
    x = 468,367.53

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1.5x scale

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.