Home / 1,247,116.52-1,719,873.06-817,240.52

Finding the Fourth Proportional to 1,247,116.52, 1,719,873.06 and 817,240.52

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Solution

The fourth proportional to 1,247,116.52, 1,719,873.06 and 817,240.52 is: 1,127,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,116.52 : 1,719,873.06 = 817,240.52 : x
  2. Step 2: Convert to fraction form
    1,247,116.52/1,719,873.06 = 817,240.52/x
  3. Step 3: Cross multiply
    1,247,116.52x = 1,719,873.06 × 817,240.52
  4. Step 4: Simplify right side
    1,247,116.52x = 1,405,549,953,888.39
  5. Step 5: Solve for x
    x = 1,405,549,953,888.39/1,247,116.52
  6. Step 6: Final answer
    x = 1,127,039.80

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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.