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Finding the Fourth Proportional to 522,634.95, 721,250.33 and 307,735.47

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Solution

The fourth proportional to 522,634.95, 721,250.33 and 307,735.47 is: 424,683.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,634.95 : 721,250.33 = 307,735.47 : x
  2. Step 2: Convert to fraction form
    522,634.95/721,250.33 = 307,735.47/x
  3. Step 3: Cross multiply
    522,634.95x = 721,250.33 × 307,735.47
  4. Step 4: Simplify right side
    522,634.95x = 221,954,307,751.53
  5. Step 5: Solve for x
    x = 221,954,307,751.53/522,634.95
  6. Step 6: Final answer
    x = 424,683.25

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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.