Home / 429,780.18-644,669.56-114,237.06

Finding the Fourth Proportional to 429,780.18, 644,669.56 and 114,237.06

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Solution

The fourth proportional to 429,780.18, 644,669.56 and 114,237.06 is: 171,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,780.18 : 644,669.56 = 114,237.06 : x
  2. Step 2: Convert to fraction form
    429,780.18/644,669.56 = 114,237.06/x
  3. Step 3: Cross multiply
    429,780.18x = 644,669.56 × 114,237.06
  4. Step 4: Simplify right side
    429,780.18x = 73,645,155,205.89
  5. Step 5: Solve for x
    x = 73,645,155,205.89/429,780.18
  6. Step 6: Final answer
    x = 171,355.40

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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.