Home / 1,871,856.10-2,808,302.55-1,242,000.10

Finding the Fourth Proportional to 1,871,856.10, 2,808,302.55 and 1,242,000.10

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Solution

The fourth proportional to 1,871,856.10, 2,808,302.55 and 1,242,000.10 is: 1,863,344.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,856.10 : 2,808,302.55 = 1,242,000.10 : x
  2. Step 2: Convert to fraction form
    1,871,856.10/2,808,302.55 = 1,242,000.10/x
  3. Step 3: Cross multiply
    1,871,856.10x = 2,808,302.55 × 1,242,000.10
  4. Step 4: Simplify right side
    1,871,856.10x = 3,487,912,047,930.26
  5. Step 5: Solve for x
    x = 3,487,912,047,930.26/1,871,856.10
  6. Step 6: Final answer
    x = 1,863,344.11

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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.