Home / 513,254.33-708,317.90-309,370.04

Finding the Fourth Proportional to 513,254.33, 708,317.90 and 309,370.04

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Solution

The fourth proportional to 513,254.33, 708,317.90 and 309,370.04 is: 426,946.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,254.33 : 708,317.90 = 309,370.04 : x
  2. Step 2: Convert to fraction form
    513,254.33/708,317.90 = 309,370.04/x
  3. Step 3: Cross multiply
    513,254.33x = 708,317.90 × 309,370.04
  4. Step 4: Simplify right side
    513,254.33x = 219,132,331,967.28
  5. Step 5: Solve for x
    x = 219,132,331,967.28/513,254.33
  6. Step 6: Final answer
    x = 426,946.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.