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Finding the Fourth Proportional to 1,355,502.80, 2,030,921.40 and 881,944.40

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Solution

The fourth proportional to 1,355,502.80, 2,030,921.40 and 881,944.40 is: 1,321,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,502.80 : 2,030,921.40 = 881,944.40 : x
  2. Step 2: Convert to fraction form
    1,355,502.80/2,030,921.40 = 881,944.40/x
  3. Step 3: Cross multiply
    1,355,502.80x = 2,030,921.40 × 881,944.40
  4. Step 4: Simplify right side
    1,355,502.80x = 1,791,159,755,570.16
  5. Step 5: Solve for x
    x = 1,791,159,755,570.16/1,355,502.80
  6. Step 6: Final answer
    x = 1,321,398.79

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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.