Home / 1,615,385.32-2,229,246.88-890,259.56

Finding the Fourth Proportional to 1,615,385.32, 2,229,246.88 and 890,259.56

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Solution

The fourth proportional to 1,615,385.32, 2,229,246.88 and 890,259.56 is: 1,228,566.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,385.32 : 2,229,246.88 = 890,259.56 : x
  2. Step 2: Convert to fraction form
    1,615,385.32/2,229,246.88 = 890,259.56/x
  3. Step 3: Cross multiply
    1,615,385.32x = 2,229,246.88 × 890,259.56
  4. Step 4: Simplify right side
    1,615,385.32x = 1,984,608,346,520.17
  5. Step 5: Solve for x
    x = 1,984,608,346,520.17/1,615,385.32
  6. Step 6: Final answer
    x = 1,228,566.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.