Home / 397,029,761.60-595,544,642.40-287,340,339.20

Finding the Fourth Proportional to 397,029,761.60, 595,544,642.40 and 287,340,339.20

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Solution

The fourth proportional to 397,029,761.60, 595,544,642.40 and 287,340,339.20 is: 431,010,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,029,761.60 : 595,544,642.40 = 287,340,339.20 : x
  2. Step 2: Convert to fraction form
    397,029,761.60/595,544,642.40 = 287,340,339.20/x
  3. Step 3: Cross multiply
    397,029,761.60x = 595,544,642.40 × 287,340,339.20
  4. Step 4: Simplify right side
    397,029,761.60x = 171,123,999,555,958,688
  5. Step 5: Solve for x
    x = 171,123,999,555,958,688/397,029,761.60
  6. Step 6: Final answer
    x = 431,010,508.80

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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.