Home / 986,296.98-1,479,429.36-312,377.28

Finding the Fourth Proportional to 986,296.98, 1,479,429.36 and 312,377.28

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Solution

The fourth proportional to 986,296.98, 1,479,429.36 and 312,377.28 is: 468,560.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,296.98 : 1,479,429.36 = 312,377.28 : x
  2. Step 2: Convert to fraction form
    986,296.98/1,479,429.36 = 312,377.28/x
  3. Step 3: Cross multiply
    986,296.98x = 1,479,429.36 × 312,377.28
  4. Step 4: Simplify right side
    986,296.98x = 462,140,119,428.94
  5. Step 5: Solve for x
    x = 462,140,119,428.94/986,296.98
  6. Step 6: Final answer
    x = 468,560.82

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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.