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Finding the Fourth Proportional to 479,401.01, 719,126.30 and 455,159.26

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Solution

The fourth proportional to 479,401.01, 719,126.30 and 455,159.26 is: 682,762.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,401.01 : 719,126.30 = 455,159.26 : x
  2. Step 2: Convert to fraction form
    479,401.01/719,126.30 = 455,159.26/x
  3. Step 3: Cross multiply
    479,401.01x = 719,126.30 × 455,159.26
  4. Step 4: Simplify right side
    479,401.01x = 327,316,992,278.74
  5. Step 5: Solve for x
    x = 327,316,992,278.74/479,401.01
  6. Step 6: Final answer
    x = 682,762.42

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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.