Home / 777,613.34-1,073,129.15-455,293.28

Finding the Fourth Proportional to 777,613.34, 1,073,129.15 and 455,293.28

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Solution

The fourth proportional to 777,613.34, 1,073,129.15 and 455,293.28 is: 628,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,613.34 : 1,073,129.15 = 455,293.28 : x
  2. Step 2: Convert to fraction form
    777,613.34/1,073,129.15 = 455,293.28/x
  3. Step 3: Cross multiply
    777,613.34x = 1,073,129.15 × 455,293.28
  4. Step 4: Simplify right side
    777,613.34x = 488,588,494,388.17
  5. Step 5: Solve for x
    x = 488,588,494,388.17/777,613.34
  6. Step 6: Final answer
    x = 628,318.04

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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.