Home / 939,125.62-1,408,800.74-331,788.20

Finding the Fourth Proportional to 939,125.62, 1,408,800.74 and 331,788.20

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Solution

The fourth proportional to 939,125.62, 1,408,800.74 and 331,788.20 is: 497,721.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,125.62 : 1,408,800.74 = 331,788.20 : x
  2. Step 2: Convert to fraction form
    939,125.62/1,408,800.74 = 331,788.20/x
  3. Step 3: Cross multiply
    939,125.62x = 1,408,800.74 × 331,788.20
  4. Step 4: Simplify right side
    939,125.62x = 467,423,461,683.27
  5. Step 5: Solve for x
    x = 467,423,461,683.27/939,125.62
  6. Step 6: Final answer
    x = 497,721.98

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Double scale
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Similar ratio
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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.