Home / 1,291,634.40-1,937,221.20-817,471.20

Finding the Fourth Proportional to 1,291,634.40, 1,937,221.20 and 817,471.20

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Solution

The fourth proportional to 1,291,634.40, 1,937,221.20 and 817,471.20 is: 1,226,060.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,634.40 : 1,937,221.20 = 817,471.20 : x
  2. Step 2: Convert to fraction form
    1,291,634.40/1,937,221.20 = 817,471.20/x
  3. Step 3: Cross multiply
    1,291,634.40x = 1,937,221.20 × 817,471.20
  4. Step 4: Simplify right side
    1,291,634.40x = 1,583,622,539,029.44
  5. Step 5: Solve for x
    x = 1,583,622,539,029.44/1,291,634.40
  6. Step 6: Final answer
    x = 1,226,060.98

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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.