Home / 587,928.04-811,339.62-319,655.40

Finding the Fourth Proportional to 587,928.04, 811,339.62 and 319,655.40

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Solution

The fourth proportional to 587,928.04, 811,339.62 and 319,655.40 is: 441,123.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,928.04 : 811,339.62 = 319,655.40 : x
  2. Step 2: Convert to fraction form
    587,928.04/811,339.62 = 319,655.40/x
  3. Step 3: Cross multiply
    587,928.04x = 811,339.62 × 319,655.40
  4. Step 4: Simplify right side
    587,928.04x = 259,349,090,766.95
  5. Step 5: Solve for x
    x = 259,349,090,766.95/587,928.04
  6. Step 6: Final answer
    x = 441,123.87

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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.