Home / 1,871,638.20-2,808,429.30-874,366.20

Finding the Fourth Proportional to 1,871,638.20, 2,808,429.30 and 874,366.20

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Solution

The fourth proportional to 1,871,638.20, 2,808,429.30 and 874,366.20 is: 1,312,003.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,638.20 : 2,808,429.30 = 874,366.20 : x
  2. Step 2: Convert to fraction form
    1,871,638.20/2,808,429.30 = 874,366.20/x
  3. Step 3: Cross multiply
    1,871,638.20x = 2,808,429.30 × 874,366.20
  4. Step 4: Simplify right side
    1,871,638.20x = 2,455,595,655,009.66
  5. Step 5: Solve for x
    x = 2,455,595,655,009.66/1,871,638.20
  6. Step 6: Final answer
    x = 1,312,003.39

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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.