Home / 1,871,421.60-2,807,132.40-1,818,933.60

Finding the Fourth Proportional to 1,871,421.60, 2,807,132.40 and 1,818,933.60

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Solution

The fourth proportional to 1,871,421.60, 2,807,132.40 and 1,818,933.60 is: 2,728,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,421.60 : 2,807,132.40 = 1,818,933.60 : x
  2. Step 2: Convert to fraction form
    1,871,421.60/2,807,132.40 = 1,818,933.60/x
  3. Step 3: Cross multiply
    1,871,421.60x = 2,807,132.40 × 1,818,933.60
  4. Step 4: Simplify right side
    1,871,421.60x = 5,105,987,442,008.64
  5. Step 5: Solve for x
    x = 5,105,987,442,008.64/1,871,421.60
  6. Step 6: Final answer
    x = 2,728,400.40

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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.