Home / 2,758,228.80-4,129,664.40-1,407,472.80

Finding the Fourth Proportional to 2,758,228.80, 4,129,664.40 and 1,407,472.80

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Solution

The fourth proportional to 2,758,228.80, 4,129,664.40 and 1,407,472.80 is: 2,107,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,228.80 : 4,129,664.40 = 1,407,472.80 : x
  2. Step 2: Convert to fraction form
    2,758,228.80/4,129,664.40 = 1,407,472.80/x
  3. Step 3: Cross multiply
    2,758,228.80x = 4,129,664.40 × 1,407,472.80
  4. Step 4: Simplify right side
    2,758,228.80x = 5,812,390,316,128.32
  5. Step 5: Solve for x
    x = 5,812,390,316,128.32/2,758,228.80
  6. Step 6: Final answer
    x = 2,107,290.85

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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.