Home / 513,352.12-708,456.90-286,999.24

Finding the Fourth Proportional to 513,352.12, 708,456.90 and 286,999.24

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Solution

The fourth proportional to 513,352.12, 708,456.90 and 286,999.24 is: 396,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,352.12 : 708,456.90 = 286,999.24 : x
  2. Step 2: Convert to fraction form
    513,352.12/708,456.90 = 286,999.24/x
  3. Step 3: Cross multiply
    513,352.12x = 708,456.90 × 286,999.24
  4. Step 4: Simplify right side
    513,352.12x = 203,326,591,872.76
  5. Step 5: Solve for x
    x = 203,326,591,872.76/513,352.12
  6. Step 6: Final answer
    x = 396,076.27

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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.