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Finding the Fourth Proportional to 658,521.36, 908,763.84 and 356,715.36

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Solution

The fourth proportional to 658,521.36, 908,763.84 and 356,715.36 is: 492,269.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,521.36 : 908,763.84 = 356,715.36 : x
  2. Step 2: Convert to fraction form
    658,521.36/908,763.84 = 356,715.36/x
  3. Step 3: Cross multiply
    658,521.36x = 908,763.84 × 356,715.36
  4. Step 4: Simplify right side
    658,521.36x = 324,170,020,340.58
  5. Step 5: Solve for x
    x = 324,170,020,340.58/658,521.36
  6. Step 6: Final answer
    x = 492,269.56

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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.