Home / 1,298,384.87-1,791,761.35-717,647.54

Finding the Fourth Proportional to 1,298,384.87, 1,791,761.35 and 717,647.54

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Solution

The fourth proportional to 1,298,384.87, 1,791,761.35 and 717,647.54 is: 990,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,384.87 : 1,791,761.35 = 717,647.54 : x
  2. Step 2: Convert to fraction form
    1,298,384.87/1,791,761.35 = 717,647.54/x
  3. Step 3: Cross multiply
    1,298,384.87x = 1,791,761.35 × 717,647.54
  4. Step 4: Simplify right side
    1,298,384.87x = 1,285,853,125,094.58
  5. Step 5: Solve for x
    x = 1,285,853,125,094.58/1,298,384.87
  6. Step 6: Final answer
    x = 990,348.20

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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.