Home / 1,493,860.40-2,238,328.20-861,671.60

Finding the Fourth Proportional to 1,493,860.40, 2,238,328.20 and 861,671.60

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Solution

The fourth proportional to 1,493,860.40, 2,238,328.20 and 861,671.60 is: 1,291,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493,860.40 : 2,238,328.20 = 861,671.60 : x
  2. Step 2: Convert to fraction form
    1,493,860.40/2,238,328.20 = 861,671.60/x
  3. Step 3: Cross multiply
    1,493,860.40x = 2,238,328.20 × 861,671.60
  4. Step 4: Simplify right side
    1,493,860.40x = 1,928,703,841,419.12
  5. Step 5: Solve for x
    x = 1,928,703,841,419.12/1,493,860.40
  6. Step 6: Final answer
    x = 1,291,087.07

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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.