Home / 1,260,341.40-1,890,512.10-1,038,907.65

Finding the Fourth Proportional to 1,260,341.40, 1,890,512.10 and 1,038,907.65

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Solution

The fourth proportional to 1,260,341.40, 1,890,512.10 and 1,038,907.65 is: 1,558,361.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,341.40 : 1,890,512.10 = 1,038,907.65 : x
  2. Step 2: Convert to fraction form
    1,260,341.40/1,890,512.10 = 1,038,907.65/x
  3. Step 3: Cross multiply
    1,260,341.40x = 1,890,512.10 × 1,038,907.65
  4. Step 4: Simplify right side
    1,260,341.40x = 1,964,067,483,107.57
  5. Step 5: Solve for x
    x = 1,964,067,483,107.57/1,260,341.40
  6. Step 6: Final answer
    x = 1,558,361.48

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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.