Home / 1,205,351.78-1,663,275.51-715,236.84

Finding the Fourth Proportional to 1,205,351.78, 1,663,275.51 and 715,236.84

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Solution

The fourth proportional to 1,205,351.78, 1,663,275.51 and 715,236.84 is: 986,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,351.78 : 1,663,275.51 = 715,236.84 : x
  2. Step 2: Convert to fraction form
    1,205,351.78/1,663,275.51 = 715,236.84/x
  3. Step 3: Cross multiply
    1,205,351.78x = 1,663,275.51 × 715,236.84
  4. Step 4: Simplify right side
    1,205,351.78x = 1,189,635,918,345.74
  5. Step 5: Solve for x
    x = 1,189,635,918,345.74/1,205,351.78
  6. Step 6: Final answer
    x = 986,961.60

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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.