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Finding the Fourth Proportional to 641,574.90, 885,594.57 and 369,751.32

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Solution

The fourth proportional to 641,574.90, 885,594.57 and 369,751.32 is: 510,384.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,574.90 : 885,594.57 = 369,751.32 : x
  2. Step 2: Convert to fraction form
    641,574.90/885,594.57 = 369,751.32/x
  3. Step 3: Cross multiply
    641,574.90x = 885,594.57 × 369,751.32
  4. Step 4: Simplify right side
    641,574.90x = 327,449,761,242.33
  5. Step 5: Solve for x
    x = 327,449,761,242.33/641,574.90
  6. Step 6: Final answer
    x = 510,384.31

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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.