Home / 1,247,115.52-1,719,871.68-817,239.52

Finding the Fourth Proportional to 1,247,115.52, 1,719,871.68 and 817,239.52

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Solution

The fourth proportional to 1,247,115.52, 1,719,871.68 and 817,239.52 is: 1,127,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,115.52 : 1,719,871.68 = 817,239.52 : x
  2. Step 2: Convert to fraction form
    1,247,115.52/1,719,871.68 = 817,239.52/x
  3. Step 3: Cross multiply
    1,247,115.52x = 1,719,871.68 × 817,239.52
  4. Step 4: Simplify right side
    1,247,115.52x = 1,405,547,106,224.79
  5. Step 5: Solve for x
    x = 1,405,547,106,224.79/1,247,115.52
  6. Step 6: Final answer
    x = 1,127,038.42

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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.