Home / 380,642.52-570,973.02-127,926.68

Finding the Fourth Proportional to 380,642.52, 570,973.02 and 127,926.68

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Solution

The fourth proportional to 380,642.52, 570,973.02 and 127,926.68 is: 191,893.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,642.52 : 570,973.02 = 127,926.68 : x
  2. Step 2: Convert to fraction form
    380,642.52/570,973.02 = 127,926.68/x
  3. Step 3: Cross multiply
    380,642.52x = 570,973.02 × 127,926.68
  4. Step 4: Simplify right side
    380,642.52x = 73,042,682,818.17
  5. Step 5: Solve for x
    x = 73,042,682,818.17/380,642.52
  6. Step 6: Final answer
    x = 191,893.13

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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.