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Finding the Fourth Proportional to 658,463.07, 908,679.06 and 356,657.07

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Solution

The fourth proportional to 658,463.07, 908,679.06 and 356,657.07 is: 492,186.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,463.07 : 908,679.06 = 356,657.07 : x
  2. Step 2: Convert to fraction form
    658,463.07/908,679.06 = 356,657.07/x
  3. Step 3: Cross multiply
    658,463.07x = 908,679.06 × 356,657.07
  4. Step 4: Simplify right side
    658,463.07x = 324,086,811,109.95
  5. Step 5: Solve for x
    x = 324,086,811,109.95/658,463.07
  6. Step 6: Final answer
    x = 492,186.77

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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.