Home / 857,834.60-1,285,877.10-502,665.80

Finding the Fourth Proportional to 857,834.60, 1,285,877.10 and 502,665.80

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Solution

The fourth proportional to 857,834.60, 1,285,877.10 and 502,665.80 is: 753,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,834.60 : 1,285,877.10 = 502,665.80 : x
  2. Step 2: Convert to fraction form
    857,834.60/1,285,877.10 = 502,665.80/x
  3. Step 3: Cross multiply
    857,834.60x = 1,285,877.10 × 502,665.80
  4. Step 4: Simplify right side
    857,834.60x = 646,366,441,173.18
  5. Step 5: Solve for x
    x = 646,366,441,173.18/857,834.60
  6. Step 6: Final answer
    x = 753,486.09

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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.