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Finding the Fourth Proportional to 640,370.28, 883,319.44 and 410,849.52

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Solution

The fourth proportional to 640,370.28, 883,319.44 and 410,849.52 is: 566,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,370.28 : 883,319.44 = 410,849.52 : x
  2. Step 2: Convert to fraction form
    640,370.28/883,319.44 = 410,849.52/x
  3. Step 3: Cross multiply
    640,370.28x = 883,319.44 × 410,849.52
  4. Step 4: Simplify right side
    640,370.28x = 362,911,367,930.67
  5. Step 5: Solve for x
    x = 362,911,367,930.67/640,370.28
  6. Step 6: Final answer
    x = 566,721.13

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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.