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Finding the Fourth Proportional to 464,041.26, 640,319.94 and 282,687.39

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Solution

The fourth proportional to 464,041.26, 640,319.94 and 282,687.39 is: 390,073.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,041.26 : 640,319.94 = 282,687.39 : x
  2. Step 2: Convert to fraction form
    464,041.26/640,319.94 = 282,687.39/x
  3. Step 3: Cross multiply
    464,041.26x = 640,319.94 × 282,687.39
  4. Step 4: Simplify right side
    464,041.26x = 181,010,372,603.56
  5. Step 5: Solve for x
    x = 181,010,372,603.56/464,041.26
  6. Step 6: Final answer
    x = 390,073.88

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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.