Home / 747,786.67-1,031,940.21-408,254.92

Finding the Fourth Proportional to 747,786.67, 1,031,940.21 and 408,254.92

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Solution

The fourth proportional to 747,786.67, 1,031,940.21 and 408,254.92 is: 563,388.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,786.67 : 1,031,940.21 = 408,254.92 : x
  2. Step 2: Convert to fraction form
    747,786.67/1,031,940.21 = 408,254.92/x
  3. Step 3: Cross multiply
    747,786.67x = 1,031,940.21 × 408,254.92
  4. Step 4: Simplify right side
    747,786.67x = 421,294,667,878.33
  5. Step 5: Solve for x
    x = 421,294,667,878.33/747,786.67
  6. Step 6: Final answer
    x = 563,388.84

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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.