Home / 986,839.36-1,480,312.87-312,871.92

Finding the Fourth Proportional to 986,839.36, 1,480,312.87 and 312,871.92

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Solution

The fourth proportional to 986,839.36, 1,480,312.87 and 312,871.92 is: 469,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,839.36 : 1,480,312.87 = 312,871.92 : x
  2. Step 2: Convert to fraction form
    986,839.36/1,480,312.87 = 312,871.92/x
  3. Step 3: Cross multiply
    986,839.36x = 1,480,312.87 × 312,871.92
  4. Step 4: Simplify right side
    986,839.36x = 463,148,329,837.61
  5. Step 5: Solve for x
    x = 463,148,329,837.61/986,839.36
  6. Step 6: Final answer
    x = 469,324.95

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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.