Home / 429,008.18-643,259.93-162,787.41

Finding the Fourth Proportional to 429,008.18, 643,259.93 and 162,787.41

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Solution

The fourth proportional to 429,008.18, 643,259.93 and 162,787.41 is: 244,085.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,008.18 : 643,259.93 = 162,787.41 : x
  2. Step 2: Convert to fraction form
    429,008.18/643,259.93 = 162,787.41/x
  3. Step 3: Cross multiply
    429,008.18x = 643,259.93 × 162,787.41
  4. Step 4: Simplify right side
    429,008.18x = 104,714,614,745.18
  5. Step 5: Solve for x
    x = 104,714,614,745.18/429,008.18
  6. Step 6: Final answer
    x = 244,085.36

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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.