Home / 1,383,739.02-1,909,516.55-811,160.55

Finding the Fourth Proportional to 1,383,739.02, 1,909,516.55 and 811,160.55

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Solution

The fourth proportional to 1,383,739.02, 1,909,516.55 and 811,160.55 is: 1,119,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,739.02 : 1,909,516.55 = 811,160.55 : x
  2. Step 2: Convert to fraction form
    1,383,739.02/1,909,516.55 = 811,160.55/x
  3. Step 3: Cross multiply
    1,383,739.02x = 1,909,516.55 × 811,160.55
  4. Step 4: Simplify right side
    1,383,739.02x = 1,548,924,490,876.30
  5. Step 5: Solve for x
    x = 1,548,924,490,876.30/1,383,739.02
  6. Step 6: Final answer
    x = 1,119,376.17

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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.