Home / 873,287.40-1,307,306.70-518,118.60

Finding the Fourth Proportional to 873,287.40, 1,307,306.70 and 518,118.60

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Solution

The fourth proportional to 873,287.40, 1,307,306.70 and 518,118.60 is: 775,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,287.40 : 1,307,306.70 = 518,118.60 : x
  2. Step 2: Convert to fraction form
    873,287.40/1,307,306.70 = 518,118.60/x
  3. Step 3: Cross multiply
    873,287.40x = 1,307,306.70 × 518,118.60
  4. Step 4: Simplify right side
    873,287.40x = 677,339,917,174.62
  5. Step 5: Solve for x
    x = 677,339,917,174.62/873,287.40
  6. Step 6: Final answer
    x = 775,620.85

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1.5x scale

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.