Home / 513,949.98-709,260.39-287,594.94

Finding the Fourth Proportional to 513,949.98, 709,260.39 and 287,594.94

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Solution

The fourth proportional to 513,949.98, 709,260.39 and 287,594.94 is: 396,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,949.98 : 709,260.39 = 287,594.94 : x
  2. Step 2: Convert to fraction form
    513,949.98/709,260.39 = 287,594.94/x
  3. Step 3: Cross multiply
    513,949.98x = 709,260.39 × 287,594.94
  4. Step 4: Simplify right side
    513,949.98x = 203,979,699,306.43
  5. Step 5: Solve for x
    x = 203,979,699,306.43/513,949.98
  6. Step 6: Final answer
    x = 396,886.29

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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.