Home / 513,739.56-708,943.19-284,306.56

Finding the Fourth Proportional to 513,739.56, 708,943.19 and 284,306.56

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Solution

The fourth proportional to 513,739.56, 708,943.19 and 284,306.56 is: 392,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,739.56 : 708,943.19 = 284,306.56 : x
  2. Step 2: Convert to fraction form
    513,739.56/708,943.19 = 284,306.56/x
  3. Step 3: Cross multiply
    513,739.56x = 708,943.19 × 284,306.56
  4. Step 4: Simplify right side
    513,739.56x = 201,557,196,390.44
  5. Step 5: Solve for x
    x = 201,557,196,390.44/513,739.56
  6. Step 6: Final answer
    x = 392,333.41

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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.