Home / 857,429.60-1,285,269.60-502,260.80

Finding the Fourth Proportional to 857,429.60, 1,285,269.60 and 502,260.80

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Solution

The fourth proportional to 857,429.60, 1,285,269.60 and 502,260.80 is: 752,878.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,429.60 : 1,285,269.60 = 502,260.80 : x
  2. Step 2: Convert to fraction form
    857,429.60/1,285,269.60 = 502,260.80/x
  3. Step 3: Cross multiply
    857,429.60x = 1,285,269.60 × 502,260.80
  4. Step 4: Simplify right side
    857,429.60x = 645,540,537,511.68
  5. Step 5: Solve for x
    x = 645,540,537,511.68/857,429.60
  6. Step 6: Final answer
    x = 752,878.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.