Home / 1,557,915.50-2,149,929.87-842,523.50

Finding the Fourth Proportional to 1,557,915.50, 2,149,929.87 and 842,523.50

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Solution

The fourth proportional to 1,557,915.50, 2,149,929.87 and 842,523.50 is: 1,162,685.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,915.50 : 2,149,929.87 = 842,523.50 : x
  2. Step 2: Convert to fraction form
    1,557,915.50/2,149,929.87 = 842,523.50/x
  3. Step 3: Cross multiply
    1,557,915.50x = 2,149,929.87 × 842,523.50
  4. Step 4: Simplify right side
    1,557,915.50x = 1,811,366,438,826.95
  5. Step 5: Solve for x
    x = 1,811,366,438,826.95/1,557,915.50
  6. Step 6: Final answer
    x = 1,162,685.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.