Home / 939,621.01-1,296,680.40-509,901.04

Finding the Fourth Proportional to 939,621.01, 1,296,680.40 and 509,901.04

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Solution

The fourth proportional to 939,621.01, 1,296,680.40 and 509,901.04 is: 703,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,621.01 : 1,296,680.40 = 509,901.04 : x
  2. Step 2: Convert to fraction form
    939,621.01/1,296,680.40 = 509,901.04/x
  3. Step 3: Cross multiply
    939,621.01x = 1,296,680.40 × 509,901.04
  4. Step 4: Simplify right side
    939,621.01x = 661,178,684,507.62
  5. Step 5: Solve for x
    x = 661,178,684,507.62/939,621.01
  6. Step 6: Final answer
    x = 703,665.28

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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.