Home / 1,591,438.61-2,192,001.71-1,223,211.58

Finding the Fourth Proportional to 1,591,438.61, 2,192,001.71 and 1,223,211.58

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Solution

The fourth proportional to 1,591,438.61, 2,192,001.71 and 1,223,211.58 is: 1,684,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591,438.61 : 2,192,001.71 = 1,223,211.58 : x
  2. Step 2: Convert to fraction form
    1,591,438.61/2,192,001.71 = 1,223,211.58/x
  3. Step 3: Cross multiply
    1,591,438.61x = 2,192,001.71 × 1,223,211.58
  4. Step 4: Simplify right side
    1,591,438.61x = 2,681,281,871,993.77
  5. Step 5: Solve for x
    x = 2,681,281,871,993.77/1,591,438.61
  6. Step 6: Final answer
    x = 1,684,816.40

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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.