Home / 429,008.24-643,260.03-162,787.47

Finding the Fourth Proportional to 429,008.24, 643,260.03 and 162,787.47

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Solution

The fourth proportional to 429,008.24, 643,260.03 and 162,787.47 is: 244,085.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,008.24 : 643,260.03 = 162,787.47 : x
  2. Step 2: Convert to fraction form
    429,008.24/643,260.03 = 162,787.47/x
  3. Step 3: Cross multiply
    429,008.24x = 643,260.03 × 162,787.47
  4. Step 4: Simplify right side
    429,008.24x = 104,714,669,813.15
  5. Step 5: Solve for x
    x = 104,714,669,813.15/429,008.24
  6. Step 6: Final answer
    x = 244,085.45

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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.