Home / 1,267,220.40-1,897,331.40-987,284.40

Finding the Fourth Proportional to 1,267,220.40, 1,897,331.40 and 987,284.40

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Solution

The fourth proportional to 1,267,220.40, 1,897,331.40 and 987,284.40 is: 1,478,200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,220.40 : 1,897,331.40 = 987,284.40 : x
  2. Step 2: Convert to fraction form
    1,267,220.40/1,897,331.40 = 987,284.40/x
  3. Step 3: Cross multiply
    1,267,220.40x = 1,897,331.40 × 987,284.40
  4. Step 4: Simplify right side
    1,267,220.40x = 1,873,205,692,850.16
  5. Step 5: Solve for x
    x = 1,873,205,692,850.16/1,267,220.40
  6. Step 6: Final answer
    x = 1,478,200.39

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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.