Home / 986,012.24-1,479,239.89-312,133.95

Finding the Fourth Proportional to 986,012.24, 1,479,239.89 and 312,133.95

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Solution

The fourth proportional to 986,012.24, 1,479,239.89 and 312,133.95 is: 468,271.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,012.24 : 1,479,239.89 = 312,133.95 : x
  2. Step 2: Convert to fraction form
    986,012.24/1,479,239.89 = 312,133.95/x
  3. Step 3: Cross multiply
    986,012.24x = 1,479,239.89 × 312,133.95
  4. Step 4: Simplify right side
    986,012.24x = 461,720,989,082.93
  5. Step 5: Solve for x
    x = 461,720,989,082.93/986,012.24
  6. Step 6: Final answer
    x = 468,271.05

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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.