Home / 1,215,737.40-1,823,606.10-542,141.40

Finding the Fourth Proportional to 1,215,737.40, 1,823,606.10 and 542,141.40

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Solution

The fourth proportional to 1,215,737.40, 1,823,606.10 and 542,141.40 is: 813,212.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,737.40 : 1,823,606.10 = 542,141.40 : x
  2. Step 2: Convert to fraction form
    1,215,737.40/1,823,606.10 = 542,141.40/x
  3. Step 3: Cross multiply
    1,215,737.40x = 1,823,606.10 × 542,141.40
  4. Step 4: Simplify right side
    1,215,737.40x = 988,652,364,102.54
  5. Step 5: Solve for x
    x = 988,652,364,102.54/1,215,737.40
  6. Step 6: Final answer
    x = 813,212.10

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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.