Home / 637,902.20-956,853.30-319,037.60

Finding the Fourth Proportional to 637,902.20, 956,853.30 and 319,037.60

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Solution

The fourth proportional to 637,902.20, 956,853.30 and 319,037.60 is: 478,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,902.20 : 956,853.30 = 319,037.60 : x
  2. Step 2: Convert to fraction form
    637,902.20/956,853.30 = 319,037.60/x
  3. Step 3: Cross multiply
    637,902.20x = 956,853.30 × 319,037.60
  4. Step 4: Simplify right side
    637,902.20x = 305,272,180,384.08
  5. Step 5: Solve for x
    x = 305,272,180,384.08/637,902.20
  6. Step 6: Final answer
    x = 478,556.40

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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.