Home / 915,979.96-1,374,094.68-316,780.30

Finding the Fourth Proportional to 915,979.96, 1,374,094.68 and 316,780.30

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Solution

The fourth proportional to 915,979.96, 1,374,094.68 and 316,780.30 is: 475,213.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,979.96 : 1,374,094.68 = 316,780.30 : x
  2. Step 2: Convert to fraction form
    915,979.96/1,374,094.68 = 316,780.30/x
  3. Step 3: Cross multiply
    915,979.96x = 1,374,094.68 × 316,780.30
  4. Step 4: Simplify right side
    915,979.96x = 435,286,124,958.80
  5. Step 5: Solve for x
    x = 435,286,124,958.80/915,979.96
  6. Step 6: Final answer
    x = 475,213.59

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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.