Home / 1,871,859.60-2,808,307.80-1,242,003.60

Finding the Fourth Proportional to 1,871,859.60, 2,808,307.80 and 1,242,003.60

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Solution

The fourth proportional to 1,871,859.60, 2,808,307.80 and 1,242,003.60 is: 1,863,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,859.60 : 2,808,307.80 = 1,242,003.60 : x
  2. Step 2: Convert to fraction form
    1,871,859.60/2,808,307.80 = 1,242,003.60/x
  3. Step 3: Cross multiply
    1,871,859.60x = 2,808,307.80 × 1,242,003.60
  4. Step 4: Simplify right side
    1,871,859.60x = 3,487,928,397,508.08
  5. Step 5: Solve for x
    x = 3,487,928,397,508.08/1,871,859.60
  6. Step 6: Final answer
    x = 1,863,349.37

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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.