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Finding the Fourth Proportional to 658,040.80, 908,096.64 and 356,234.80

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Solution

The fourth proportional to 658,040.80, 908,096.64 and 356,234.80 is: 491,604.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,040.80 : 908,096.64 = 356,234.80 : x
  2. Step 2: Convert to fraction form
    658,040.80/908,096.64 = 356,234.80/x
  3. Step 3: Cross multiply
    658,040.80x = 908,096.64 × 356,234.80
  4. Step 4: Simplify right side
    658,040.80x = 323,495,624,931.07
  5. Step 5: Solve for x
    x = 323,495,624,931.07/658,040.80
  6. Step 6: Final answer
    x = 491,604.21

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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.