Home / 782,432.07-1,079,782.79-438,282.69

Finding the Fourth Proportional to 782,432.07, 1,079,782.79 and 438,282.69

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Solution

The fourth proportional to 782,432.07, 1,079,782.79 and 438,282.69 is: 604,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,432.07 : 1,079,782.79 = 438,282.69 : x
  2. Step 2: Convert to fraction form
    782,432.07/1,079,782.79 = 438,282.69/x
  3. Step 3: Cross multiply
    782,432.07x = 1,079,782.79 × 438,282.69
  4. Step 4: Simplify right side
    782,432.07x = 473,250,103,625.49
  5. Step 5: Solve for x
    x = 473,250,103,625.49/782,432.07
  6. Step 6: Final answer
    x = 604,844.97

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Double scale
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1.5x scale

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.