Home / 939,127.62-1,408,803.74-331,790.20

Finding the Fourth Proportional to 939,127.62, 1,408,803.74 and 331,790.20

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Solution

The fourth proportional to 939,127.62, 1,408,803.74 and 331,790.20 is: 497,724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,127.62 : 1,408,803.74 = 331,790.20 : x
  2. Step 2: Convert to fraction form
    939,127.62/1,408,803.74 = 331,790.20/x
  3. Step 3: Cross multiply
    939,127.62x = 1,408,803.74 × 331,790.20
  4. Step 4: Simplify right side
    939,127.62x = 467,427,274,655.35
  5. Step 5: Solve for x
    x = 467,427,274,655.35/939,127.62
  6. Step 6: Final answer
    x = 497,724.98

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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.