Home / 1,211,400.90-1,817,101.35-927,965.70

Finding the Fourth Proportional to 1,211,400.90, 1,817,101.35 and 927,965.70

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Solution

The fourth proportional to 1,211,400.90, 1,817,101.35 and 927,965.70 is: 1,391,948.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,400.90 : 1,817,101.35 = 927,965.70 : x
  2. Step 2: Convert to fraction form
    1,211,400.90/1,817,101.35 = 927,965.70/x
  3. Step 3: Cross multiply
    1,211,400.90x = 1,817,101.35 × 927,965.70
  4. Step 4: Simplify right side
    1,211,400.90x = 1,686,207,726,223.70
  5. Step 5: Solve for x
    x = 1,686,207,726,223.70/1,211,400.90
  6. Step 6: Final answer
    x = 1,391,948.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.