Home / 489,933.60-676,182.24-299,057.64

Finding the Fourth Proportional to 489,933.60, 676,182.24 and 299,057.64

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Solution

The fourth proportional to 489,933.60, 676,182.24 and 299,057.64 is: 412,744.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,933.60 : 676,182.24 = 299,057.64 : x
  2. Step 2: Convert to fraction form
    489,933.60/676,182.24 = 299,057.64/x
  3. Step 3: Cross multiply
    489,933.60x = 676,182.24 × 299,057.64
  4. Step 4: Simplify right side
    489,933.60x = 202,217,464,904.31
  5. Step 5: Solve for x
    x = 202,217,464,904.31/489,933.60
  6. Step 6: Final answer
    x = 412,744.63

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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.