Home / 658,235.36-908,369.16-356,429.36

Finding the Fourth Proportional to 658,235.36, 908,369.16 and 356,429.36

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Solution

The fourth proportional to 658,235.36, 908,369.16 and 356,429.36 is: 491,874.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,235.36 : 908,369.16 = 356,429.36 : x
  2. Step 2: Convert to fraction form
    658,235.36/908,369.16 = 356,429.36/x
  3. Step 3: Cross multiply
    658,235.36x = 908,369.16 × 356,429.36
  4. Step 4: Simplify right side
    658,235.36x = 323,769,438,342.54
  5. Step 5: Solve for x
    x = 323,769,438,342.54/658,235.36
  6. Step 6: Final answer
    x = 491,874.88

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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.