Home / 915,963.96-1,374,070.68-316,764.30

Finding the Fourth Proportional to 915,963.96, 1,374,070.68 and 316,764.30

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Solution

The fourth proportional to 915,963.96, 1,374,070.68 and 316,764.30 is: 475,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,963.96 : 1,374,070.68 = 316,764.30 : x
  2. Step 2: Convert to fraction form
    915,963.96/1,374,070.68 = 316,764.30/x
  3. Step 3: Cross multiply
    915,963.96x = 1,374,070.68 × 316,764.30
  4. Step 4: Simplify right side
    915,963.96x = 435,256,537,100.72
  5. Step 5: Solve for x
    x = 435,256,537,100.72/915,963.96
  6. Step 6: Final answer
    x = 475,189.59

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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.