Home / 1,229,214.66-1,695,713.31-821,416.74

Finding the Fourth Proportional to 1,229,214.66, 1,695,713.31 and 821,416.74

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Solution

The fourth proportional to 1,229,214.66, 1,695,713.31 and 821,416.74 is: 1,133,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,214.66 : 1,695,713.31 = 821,416.74 : x
  2. Step 2: Convert to fraction form
    1,229,214.66/1,695,713.31 = 821,416.74/x
  3. Step 3: Cross multiply
    1,229,214.66x = 1,695,713.31 × 821,416.74
  4. Step 4: Simplify right side
    1,229,214.66x = 1,392,887,299,074.81
  5. Step 5: Solve for x
    x = 1,392,887,299,074.81/1,229,214.66
  6. Step 6: Final answer
    x = 1,133,152.20

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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.