Home / 2,220,479.70-3,064,117.85-1,290,105.04

Finding the Fourth Proportional to 2,220,479.70, 3,064,117.85 and 1,290,105.04

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Solution

The fourth proportional to 2,220,479.70, 3,064,117.85 and 1,290,105.04 is: 1,780,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220,479.70 : 3,064,117.85 = 1,290,105.04 : x
  2. Step 2: Convert to fraction form
    2,220,479.70/3,064,117.85 = 1,290,105.04/x
  3. Step 3: Cross multiply
    2,220,479.70x = 3,064,117.85 × 1,290,105.04
  4. Step 4: Simplify right side
    2,220,479.70x = 3,953,033,881,438.96
  5. Step 5: Solve for x
    x = 3,953,033,881,438.96/2,220,479.70
  6. Step 6: Final answer
    x = 1,780,261.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.