Home / 939,031.22-1,408,658.55-299,110.20

Finding the Fourth Proportional to 939,031.22, 1,408,658.55 and 299,110.20

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Solution

The fourth proportional to 939,031.22, 1,408,658.55 and 299,110.20 is: 448,700.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,031.22 : 1,408,658.55 = 299,110.20 : x
  2. Step 2: Convert to fraction form
    939,031.22/1,408,658.55 = 299,110.20/x
  3. Step 3: Cross multiply
    939,031.22x = 1,408,658.55 × 299,110.20
  4. Step 4: Simplify right side
    939,031.22x = 421,344,140,622.21
  5. Step 5: Solve for x
    x = 421,344,140,622.21/939,031.22
  6. Step 6: Final answer
    x = 448,700.89

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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.