Home / 987,388.94-1,480,777.23-356,220.74

Finding the Fourth Proportional to 987,388.94, 1,480,777.23 and 356,220.74

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Solution

The fourth proportional to 987,388.94, 1,480,777.23 and 356,220.74 is: 534,220.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,388.94 : 1,480,777.23 = 356,220.74 : x
  2. Step 2: Convert to fraction form
    987,388.94/1,480,777.23 = 356,220.74/x
  3. Step 3: Cross multiply
    987,388.94x = 1,480,777.23 × 356,220.74
  4. Step 4: Simplify right side
    987,388.94x = 527,483,560,645.75
  5. Step 5: Solve for x
    x = 527,483,560,645.75/987,388.94
  6. Step 6: Final answer
    x = 534,220.65

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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.