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Finding the Fourth Proportional to 658,612.93, 908,886.78 and 356,806.93

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Solution

The fourth proportional to 658,612.93, 908,886.78 and 356,806.93 is: 492,394.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,612.93 : 908,886.78 = 356,806.93 : x
  2. Step 2: Convert to fraction form
    658,612.93/908,886.78 = 356,806.93/x
  3. Step 3: Cross multiply
    658,612.93x = 908,886.78 × 356,806.93
  4. Step 4: Simplify right side
    658,612.93x = 324,297,101,689.39
  5. Step 5: Solve for x
    x = 324,297,101,689.39/658,612.93
  6. Step 6: Final answer
    x = 492,394.07

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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.