Home / 430,778.03-646,566.02-217,695.92

Finding the Fourth Proportional to 430,778.03, 646,566.02 and 217,695.92

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Solution

The fourth proportional to 430,778.03, 646,566.02 and 217,695.92 is: 326,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,778.03 : 646,566.02 = 217,695.92 : x
  2. Step 2: Convert to fraction form
    430,778.03/646,566.02 = 217,695.92/x
  3. Step 3: Cross multiply
    430,778.03x = 646,566.02 × 217,695.92
  4. Step 4: Simplify right side
    430,778.03x = 140,754,783,476.16
  5. Step 5: Solve for x
    x = 140,754,783,476.16/430,778.03
  6. Step 6: Final answer
    x = 326,745.50

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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.