Home / 2,106,232.80-2,906,615.40-1,290,438

Finding the Fourth Proportional to 2,106,232.80, 2,906,615.40 and 1,290,438

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Solution

The fourth proportional to 2,106,232.80, 2,906,615.40 and 1,290,438 is: 1,780,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,232.80 : 2,906,615.40 = 1,290,438 : x
  2. Step 2: Convert to fraction form
    2,106,232.80/2,906,615.40 = 1,290,438/x
  3. Step 3: Cross multiply
    2,106,232.80x = 2,906,615.40 × 1,290,438
  4. Step 4: Simplify right side
    2,106,232.80x = 3,750,806,963,545.20
  5. Step 5: Solve for x
    x = 3,750,806,963,545.20/2,106,232.80
  6. Step 6: Final answer
    x = 1,780,813.10

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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.