Home / 986,379.56-1,479,444.64-312,529.24

Finding the Fourth Proportional to 986,379.56, 1,479,444.64 and 312,529.24

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Solution

The fourth proportional to 986,379.56, 1,479,444.64 and 312,529.24 is: 468,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,379.56 : 1,479,444.64 = 312,529.24 : x
  2. Step 2: Convert to fraction form
    986,379.56/1,479,444.64 = 312,529.24/x
  3. Step 3: Cross multiply
    986,379.56x = 1,479,444.64 × 312,529.24
  4. Step 4: Simplify right side
    986,379.56x = 462,369,708,961.27
  5. Step 5: Solve for x
    x = 462,369,708,961.27/986,379.56
  6. Step 6: Final answer
    x = 468,754.35

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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.