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Finding the Fourth Proportional to 522,600.54, 721,102.14 and 307,662.18

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Solution

The fourth proportional to 522,600.54, 721,102.14 and 307,662.18 is: 424,522.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,600.54 : 721,102.14 = 307,662.18 : x
  2. Step 2: Convert to fraction form
    522,600.54/721,102.14 = 307,662.18/x
  3. Step 3: Cross multiply
    522,600.54x = 721,102.14 × 307,662.18
  4. Step 4: Simplify right side
    522,600.54x = 221,855,856,395.07
  5. Step 5: Solve for x
    x = 221,855,856,395.07/522,600.54
  6. Step 6: Final answer
    x = 424,522.82

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1.5x scale

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.