Home / 689,438.86-1,033,947.95-554,182.04

Finding the Fourth Proportional to 689,438.86, 1,033,947.95 and 554,182.04

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Solution

The fourth proportional to 689,438.86, 1,033,947.95 and 554,182.04 is: 831,103.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,438.86 : 1,033,947.95 = 554,182.04 : x
  2. Step 2: Convert to fraction form
    689,438.86/1,033,947.95 = 554,182.04/x
  3. Step 3: Cross multiply
    689,438.86x = 1,033,947.95 × 554,182.04
  4. Step 4: Simplify right side
    689,438.86x = 572,995,383,998.78
  5. Step 5: Solve for x
    x = 572,995,383,998.78/689,438.86
  6. Step 6: Final answer
    x = 831,103.99

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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.