Home / 1,334,138.90-2,001,263.72-387,509.62

Finding the Fourth Proportional to 1,334,138.90, 2,001,263.72 and 387,509.62

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Solution

The fourth proportional to 1,334,138.90, 2,001,263.72 and 387,509.62 is: 581,280.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334,138.90 : 2,001,263.72 = 387,509.62 : x
  2. Step 2: Convert to fraction form
    1,334,138.90/2,001,263.72 = 387,509.62/x
  3. Step 3: Cross multiply
    1,334,138.90x = 2,001,263.72 × 387,509.62
  4. Step 4: Simplify right side
    1,334,138.90x = 775,508,943,656.99
  5. Step 5: Solve for x
    x = 775,508,943,656.99/1,334,138.90
  6. Step 6: Final answer
    x = 581,280.51

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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.