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Finding the Fourth Proportional to 610,491.38, 842,478.12 and 338,600.93

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Solution

The fourth proportional to 610,491.38, 842,478.12 and 338,600.93 is: 467,269.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,491.38 : 842,478.12 = 338,600.93 : x
  2. Step 2: Convert to fraction form
    610,491.38/842,478.12 = 338,600.93/x
  3. Step 3: Cross multiply
    610,491.38x = 842,478.12 × 338,600.93
  4. Step 4: Simplify right side
    610,491.38x = 285,263,870,724.26
  5. Step 5: Solve for x
    x = 285,263,870,724.26/610,491.38
  6. Step 6: Final answer
    x = 467,269.29

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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.