Home / 986,007.74-1,479,233.14-312,129.45

Finding the Fourth Proportional to 986,007.74, 1,479,233.14 and 312,129.45

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Solution

The fourth proportional to 986,007.74, 1,479,233.14 and 312,129.45 is: 468,264.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,007.74 : 1,479,233.14 = 312,129.45 : x
  2. Step 2: Convert to fraction form
    986,007.74/1,479,233.14 = 312,129.45/x
  3. Step 3: Cross multiply
    986,007.74x = 1,479,233.14 × 312,129.45
  4. Step 4: Simplify right side
    986,007.74x = 461,712,225,629.65
  5. Step 5: Solve for x
    x = 461,712,225,629.65/986,007.74
  6. Step 6: Final answer
    x = 468,264.30

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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.