Home / 1,287,046.40-1,930,245.72-529,099.24

Finding the Fourth Proportional to 1,287,046.40, 1,930,245.72 and 529,099.24

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Solution

The fourth proportional to 1,287,046.40, 1,930,245.72 and 529,099.24 is: 793,515.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,046.40 : 1,930,245.72 = 529,099.24 : x
  2. Step 2: Convert to fraction form
    1,287,046.40/1,930,245.72 = 529,099.24/x
  3. Step 3: Cross multiply
    1,287,046.40x = 1,930,245.72 × 529,099.24
  4. Step 4: Simplify right side
    1,287,046.40x = 1,021,291,543,465.25
  5. Step 5: Solve for x
    x = 1,021,291,543,465.25/1,287,046.40
  6. Step 6: Final answer
    x = 793,515.71

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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.