Home / 915,986.46-1,374,104.46-316,786.80

Finding the Fourth Proportional to 915,986.46, 1,374,104.46 and 316,786.80

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Solution

The fourth proportional to 915,986.46, 1,374,104.46 and 316,786.80 is: 475,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,986.46 : 1,374,104.46 = 316,786.80 : x
  2. Step 2: Convert to fraction form
    915,986.46/1,374,104.46 = 316,786.80/x
  3. Step 3: Cross multiply
    915,986.46x = 1,374,104.46 × 316,786.80
  4. Step 4: Simplify right side
    915,986.46x = 435,298,154,749.13
  5. Step 5: Solve for x
    x = 435,298,154,749.13/915,986.46
  6. Step 6: Final answer
    x = 475,223.35

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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.