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Finding the Fourth Proportional to 621,650.40, 932,014.80 and 266,373.60

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Solution

The fourth proportional to 621,650.40, 932,014.80 and 266,373.60 is: 399,362.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,650.40 : 932,014.80 = 266,373.60 : x
  2. Step 2: Convert to fraction form
    621,650.40/932,014.80 = 266,373.60/x
  3. Step 3: Cross multiply
    621,650.40x = 932,014.80 × 266,373.60
  4. Step 4: Simplify right side
    621,650.40x = 248,264,137,529.28
  5. Step 5: Solve for x
    x = 248,264,137,529.28/621,650.40
  6. Step 6: Final answer
    x = 399,362.95

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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.