Home / 430,312.46-644,878.19-272,257.97

Finding the Fourth Proportional to 430,312.46, 644,878.19 and 272,257.97

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Solution

The fourth proportional to 430,312.46, 644,878.19 and 272,257.97 is: 408,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,312.46 : 644,878.19 = 272,257.97 : x
  2. Step 2: Convert to fraction form
    430,312.46/644,878.19 = 272,257.97/x
  3. Step 3: Cross multiply
    430,312.46x = 644,878.19 × 272,257.97
  4. Step 4: Simplify right side
    430,312.46x = 175,573,223,682.28
  5. Step 5: Solve for x
    x = 175,573,223,682.28/430,312.46
  6. Step 6: Final answer
    x = 408,013.34

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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.