Home / 838,732.86-1,256,206.59-388,507.86

Finding the Fourth Proportional to 838,732.86, 1,256,206.59 and 388,507.86

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Solution

The fourth proportional to 838,732.86, 1,256,206.59 and 388,507.86 is: 581,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,732.86 : 1,256,206.59 = 388,507.86 : x
  2. Step 2: Convert to fraction form
    838,732.86/1,256,206.59 = 388,507.86/x
  3. Step 3: Cross multiply
    838,732.86x = 1,256,206.59 × 388,507.86
  4. Step 4: Simplify right side
    838,732.86x = 488,046,133,998.80
  5. Step 5: Solve for x
    x = 488,046,133,998.80/838,732.86
  6. Step 6: Final answer
    x = 581,885.08

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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.