Home / 1,265,071.60-1,898,044.80-1,221,331.60

Finding the Fourth Proportional to 1,265,071.60, 1,898,044.80 and 1,221,331.60

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Solution

The fourth proportional to 1,265,071.60, 1,898,044.80 and 1,221,331.60 is: 1,832,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,071.60 : 1,898,044.80 = 1,221,331.60 : x
  2. Step 2: Convert to fraction form
    1,265,071.60/1,898,044.80 = 1,221,331.60/x
  3. Step 3: Cross multiply
    1,265,071.60x = 1,898,044.80 × 1,221,331.60
  4. Step 4: Simplify right side
    1,265,071.60x = 2,318,142,092,455.68
  5. Step 5: Solve for x
    x = 2,318,142,092,455.68/1,265,071.60
  6. Step 6: Final answer
    x = 1,832,419.68

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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.