Home / 986,732.64-1,480,521.36-312,869.28

Finding the Fourth Proportional to 986,732.64, 1,480,521.36 and 312,869.28

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Solution

The fourth proportional to 986,732.64, 1,480,521.36 and 312,869.28 is: 469,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,732.64 : 1,480,521.36 = 312,869.28 : x
  2. Step 2: Convert to fraction form
    986,732.64/1,480,521.36 = 312,869.28/x
  3. Step 3: Cross multiply
    986,732.64x = 1,480,521.36 × 312,869.28
  4. Step 4: Simplify right side
    986,732.64x = 463,209,651,927.82
  5. Step 5: Solve for x
    x = 463,209,651,927.82/986,732.64
  6. Step 6: Final answer
    x = 469,437.85

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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.