Home / 637,985.08-957,114.92-318,308.86

Finding the Fourth Proportional to 637,985.08, 957,114.92 and 318,308.86

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Solution

The fourth proportional to 637,985.08, 957,114.92 and 318,308.86 is: 477,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,985.08 : 957,114.92 = 318,308.86 : x
  2. Step 2: Convert to fraction form
    637,985.08/957,114.92 = 318,308.86/x
  3. Step 3: Cross multiply
    637,985.08x = 957,114.92 × 318,308.86
  4. Step 4: Simplify right side
    637,985.08x = 304,658,159,074.19
  5. Step 5: Solve for x
    x = 304,658,159,074.19/637,985.08
  6. Step 6: Final answer
    x = 477,531.79

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Half scale
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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.