Home / 1,509,837.28-2,265,129.24-1,240,420.72

Finding the Fourth Proportional to 1,509,837.28, 2,265,129.24 and 1,240,420.72

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Solution

The fourth proportional to 1,509,837.28, 2,265,129.24 and 1,240,420.72 is: 1,860,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,837.28 : 2,265,129.24 = 1,240,420.72 : x
  2. Step 2: Convert to fraction form
    1,509,837.28/2,265,129.24 = 1,240,420.72/x
  3. Step 3: Cross multiply
    1,509,837.28x = 2,265,129.24 × 1,240,420.72
  4. Step 4: Simplify right side
    1,509,837.28x = 2,809,713,242,773.85
  5. Step 5: Solve for x
    x = 2,809,713,242,773.85/1,509,837.28
  6. Step 6: Final answer
    x = 1,860,937.78

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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.