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Finding the Fourth Proportional to 658,612.73, 908,879.86 and 356,806.01

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Solution

The fourth proportional to 658,612.73, 908,879.86 and 356,806.01 is: 492,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,612.73 : 908,879.86 = 356,806.01 : x
  2. Step 2: Convert to fraction form
    658,612.73/908,879.86 = 356,806.01/x
  3. Step 3: Cross multiply
    658,612.73x = 908,879.86 × 356,806.01
  4. Step 4: Simplify right side
    658,612.73x = 324,293,796,415.96
  5. Step 5: Solve for x
    x = 324,293,796,415.96/658,612.73
  6. Step 6: Final answer
    x = 492,389.20

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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.