Home / 386,929.00-577,787.91-315,992.35

Finding the Fourth Proportional to 386,929.00, 577,787.91 and 315,992.35

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Solution

The fourth proportional to 386,929.00, 577,787.91 and 315,992.35 is: 471,860.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,929.00 : 577,787.91 = 315,992.35 : x
  2. Step 2: Convert to fraction form
    386,929.00/577,787.91 = 315,992.35/x
  3. Step 3: Cross multiply
    386,929.00x = 577,787.91 × 315,992.35
  4. Step 4: Simplify right side
    386,929.00x = 182,576,561,439.84
  5. Step 5: Solve for x
    x = 182,576,561,439.84/386,929.00
  6. Step 6: Final answer
    x = 471,860.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.