Home / 860,499.05-1,290,699.36-328,073.90

Finding the Fourth Proportional to 860,499.05, 1,290,699.36 and 328,073.90

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Solution

The fourth proportional to 860,499.05, 1,290,699.36 and 328,073.90 is: 492,092.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,499.05 : 1,290,699.36 = 328,073.90 : x
  2. Step 2: Convert to fraction form
    860,499.05/1,290,699.36 = 328,073.90/x
  3. Step 3: Cross multiply
    860,499.05x = 1,290,699.36 × 328,073.90
  4. Step 4: Simplify right side
    860,499.05x = 423,444,766,309.21
  5. Step 5: Solve for x
    x = 423,444,766,309.21/860,499.05
  6. Step 6: Final answer
    x = 492,092.08

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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.