Home / 658,631.36-908,915.64-356,825.36

Finding the Fourth Proportional to 658,631.36, 908,915.64 and 356,825.36

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Solution

The fourth proportional to 658,631.36, 908,915.64 and 356,825.36 is: 492,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,631.36 : 908,915.64 = 356,825.36 : x
  2. Step 2: Convert to fraction form
    658,631.36/908,915.64 = 356,825.36/x
  3. Step 3: Cross multiply
    658,631.36x = 908,915.64 × 356,825.36
  4. Step 4: Simplify right side
    658,631.36x = 324,324,150,452.63
  5. Step 5: Solve for x
    x = 324,324,150,452.63/658,631.36
  6. Step 6: Final answer
    x = 492,421.36

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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.