Home / 860,017.38-1,290,029.12-260,983.50

Finding the Fourth Proportional to 860,017.38, 1,290,029.12 and 260,983.50

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Solution

The fourth proportional to 860,017.38, 1,290,029.12 and 260,983.50 is: 391,476.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,017.38 : 1,290,029.12 = 260,983.50 : x
  2. Step 2: Convert to fraction form
    860,017.38/1,290,029.12 = 260,983.50/x
  3. Step 3: Cross multiply
    860,017.38x = 1,290,029.12 × 260,983.50
  4. Step 4: Simplify right side
    860,017.38x = 336,676,313,534.60
  5. Step 5: Solve for x
    x = 336,676,313,534.60/860,017.38
  6. Step 6: Final answer
    x = 391,476.17

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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.