Home / 401,782.02-554,832.63-258,787.86

Finding the Fourth Proportional to 401,782.02, 554,832.63 and 258,787.86

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Solution

The fourth proportional to 401,782.02, 554,832.63 and 258,787.86 is: 357,367.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,782.02 : 554,832.63 = 258,787.86 : x
  2. Step 2: Convert to fraction form
    401,782.02/554,832.63 = 258,787.86/x
  3. Step 3: Cross multiply
    401,782.02x = 554,832.63 × 258,787.86
  4. Step 4: Simplify right side
    401,782.02x = 143,583,948,975.87
  5. Step 5: Solve for x
    x = 143,583,948,975.87/401,782.02
  6. Step 6: Final answer
    x = 357,367.78

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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.