Home / 1,248,441.66-1,871,875.17-687,869.82

Finding the Fourth Proportional to 1,248,441.66, 1,871,875.17 and 687,869.82

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Solution

The fourth proportional to 1,248,441.66, 1,871,875.17 and 687,869.82 is: 1,031,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,441.66 : 1,871,875.17 = 687,869.82 : x
  2. Step 2: Convert to fraction form
    1,248,441.66/1,871,875.17 = 687,869.82/x
  3. Step 3: Cross multiply
    1,248,441.66x = 1,871,875.17 × 687,869.82
  4. Step 4: Simplify right side
    1,248,441.66x = 1,287,606,436,250.37
  5. Step 5: Solve for x
    x = 1,287,606,436,250.37/1,248,441.66
  6. Step 6: Final answer
    x = 1,031,370.93

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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.