Home / 429,913.89-644,870.07-114,370.79

Finding the Fourth Proportional to 429,913.89, 644,870.07 and 114,370.79

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Solution

The fourth proportional to 429,913.89, 644,870.07 and 114,370.79 is: 171,555.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,913.89 : 644,870.07 = 114,370.79 : x
  2. Step 2: Convert to fraction form
    429,913.89/644,870.07 = 114,370.79/x
  3. Step 3: Cross multiply
    429,913.89x = 644,870.07 × 114,370.79
  4. Step 4: Simplify right side
    429,913.89x = 73,754,298,781.40
  5. Step 5: Solve for x
    x = 73,754,298,781.40/429,913.89
  6. Step 6: Final answer
    x = 171,555.98

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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.