Home / 790,146.72-1,182,893.40-489,661.56

Finding the Fourth Proportional to 790,146.72, 1,182,893.40 and 489,661.56

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Solution

The fourth proportional to 790,146.72, 1,182,893.40 and 489,661.56 is: 733,050.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,146.72 : 1,182,893.40 = 489,661.56 : x
  2. Step 2: Convert to fraction form
    790,146.72/1,182,893.40 = 489,661.56/x
  3. Step 3: Cross multiply
    790,146.72x = 1,182,893.40 × 489,661.56
  4. Step 4: Simplify right side
    790,146.72x = 579,217,427,557.70
  5. Step 5: Solve for x
    x = 579,217,427,557.70/790,146.72
  6. Step 6: Final answer
    x = 733,050.47

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Double scale
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1.5x scale

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.