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Finding the Fourth Proportional to 1,871,570.80, 2,804,731.80 and 1,645,872.40

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Solution

The fourth proportional to 1,871,570.80, 2,804,731.80 and 1,645,872.40 is: 2,466,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,570.80 : 2,804,731.80 = 1,645,872.40 : x
  2. Step 2: Convert to fraction form
    1,871,570.80/2,804,731.80 = 1,645,872.40/x
  3. Step 3: Cross multiply
    1,871,570.80x = 2,804,731.80 × 1,645,872.40
  4. Step 4: Simplify right side
    1,871,570.80x = 4,616,230,659,022.32
  5. Step 5: Solve for x
    x = 4,616,230,659,022.32/1,871,570.80
  6. Step 6: Final answer
    x = 2,466,500.68

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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.