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Finding the Fourth Proportional to 479,347.22, 661,513 and 264,501.12

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Solution

The fourth proportional to 479,347.22, 661,513 and 264,501.12 is: 365,019.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,347.22 : 661,513 = 264,501.12 : x
  2. Step 2: Convert to fraction form
    479,347.22/661,513 = 264,501.12/x
  3. Step 3: Cross multiply
    479,347.22x = 661,513 × 264,501.12
  4. Step 4: Simplify right side
    479,347.22x = 174,970,929,394.56
  5. Step 5: Solve for x
    x = 174,970,929,394.56/479,347.22
  6. Step 6: Final answer
    x = 365,019.18

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1.5x scale

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.