Home / 915,981.46-1,374,096.96-316,781.80

Finding the Fourth Proportional to 915,981.46, 1,374,096.96 and 316,781.80

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Solution

The fourth proportional to 915,981.46, 1,374,096.96 and 316,781.80 is: 475,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,981.46 : 1,374,096.96 = 316,781.80 : x
  2. Step 2: Convert to fraction form
    915,981.46/1,374,096.96 = 316,781.80/x
  3. Step 3: Cross multiply
    915,981.46x = 1,374,096.96 × 316,781.80
  4. Step 4: Simplify right side
    915,981.46x = 435,288,908,363.33
  5. Step 5: Solve for x
    x = 435,288,908,363.33/915,981.46
  6. Step 6: Final answer
    x = 475,215.85

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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.