Home / 939,620.01-1,296,679.02-509,900.04

Finding the Fourth Proportional to 939,620.01, 1,296,679.02 and 509,900.04

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Solution

The fourth proportional to 939,620.01, 1,296,679.02 and 509,900.04 is: 703,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,620.01 : 1,296,679.02 = 509,900.04 : x
  2. Step 2: Convert to fraction form
    939,620.01/1,296,679.02 = 509,900.04/x
  3. Step 3: Cross multiply
    939,620.01x = 1,296,679.02 × 509,900.04
  4. Step 4: Simplify right side
    939,620.01x = 661,176,684,165.16
  5. Step 5: Solve for x
    x = 661,176,684,165.16/939,620.01
  6. Step 6: Final answer
    x = 703,663.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.