Home / 1,528,956.81-2,109,834.81-900,200.55

Finding the Fourth Proportional to 1,528,956.81, 2,109,834.81 and 900,200.55

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Solution

The fourth proportional to 1,528,956.81, 2,109,834.81 and 900,200.55 is: 1,242,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,956.81 : 2,109,834.81 = 900,200.55 : x
  2. Step 2: Convert to fraction form
    1,528,956.81/2,109,834.81 = 900,200.55/x
  3. Step 3: Cross multiply
    1,528,956.81x = 2,109,834.81 × 900,200.55
  4. Step 4: Simplify right side
    1,528,956.81x = 1,899,274,456,371.15
  5. Step 5: Solve for x
    x = 1,899,274,456,371.15/1,528,956.81
  6. Step 6: Final answer
    x = 1,242,202.82

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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.