Home / 1,221,874.40-1,831,256.40-1,088,127.20

Finding the Fourth Proportional to 1,221,874.40, 1,831,256.40 and 1,088,127.20

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Solution

The fourth proportional to 1,221,874.40, 1,831,256.40 and 1,088,127.20 is: 1,630,805.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,874.40 : 1,831,256.40 = 1,088,127.20 : x
  2. Step 2: Convert to fraction form
    1,221,874.40/1,831,256.40 = 1,088,127.20/x
  3. Step 3: Cross multiply
    1,221,874.40x = 1,831,256.40 × 1,088,127.20
  4. Step 4: Simplify right side
    1,221,874.40x = 1,992,639,899,014.08
  5. Step 5: Solve for x
    x = 1,992,639,899,014.08/1,221,874.40
  6. Step 6: Final answer
    x = 1,630,805.83

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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.