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Finding the Fourth Proportional to 583,385.25, 805,071.65 and 328,745.55

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Solution

The fourth proportional to 583,385.25, 805,071.65 and 328,745.55 is: 453,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,385.25 : 805,071.65 = 328,745.55 : x
  2. Step 2: Convert to fraction form
    583,385.25/805,071.65 = 328,745.55/x
  3. Step 3: Cross multiply
    583,385.25x = 805,071.65 × 328,745.55
  4. Step 4: Simplify right side
    583,385.25x = 264,663,720,724.93
  5. Step 5: Solve for x
    x = 264,663,720,724.93/583,385.25
  6. Step 6: Final answer
    x = 453,668.86

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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.