Home / 986,495.31-1,479,859.61-312,607.71

Finding the Fourth Proportional to 986,495.31, 1,479,859.61 and 312,607.71

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Solution

The fourth proportional to 986,495.31, 1,479,859.61 and 312,607.71 is: 468,948.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,495.31 : 1,479,859.61 = 312,607.71 : x
  2. Step 2: Convert to fraction form
    986,495.31/1,479,859.61 = 312,607.71/x
  3. Step 3: Cross multiply
    986,495.31x = 1,479,859.61 × 312,607.71
  4. Step 4: Simplify right side
    986,495.31x = 462,615,522,240.56
  5. Step 5: Solve for x
    x = 462,615,522,240.56/986,495.31
  6. Step 6: Final answer
    x = 468,948.53

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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.