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Finding the Fourth Proportional to 479,642.16, 661,902.93 and 264,782.15

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Solution

The fourth proportional to 479,642.16, 661,902.93 and 264,782.15 is: 365,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,642.16 : 661,902.93 = 264,782.15 : x
  2. Step 2: Convert to fraction form
    479,642.16/661,902.93 = 264,782.15/x
  3. Step 3: Cross multiply
    479,642.16x = 661,902.93 × 264,782.15
  4. Step 4: Simplify right side
    479,642.16x = 175,260,077,587.19
  5. Step 5: Solve for x
    x = 175,260,077,587.19/479,642.16
  6. Step 6: Final answer
    x = 365,397.57

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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.