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Finding the Fourth Proportional to 531,169.02, 796,988.70 and 278,389.26

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Solution

The fourth proportional to 531,169.02, 796,988.70 and 278,389.26 is: 417,707.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,169.02 : 796,988.70 = 278,389.26 : x
  2. Step 2: Convert to fraction form
    531,169.02/796,988.70 = 278,389.26/x
  3. Step 3: Cross multiply
    531,169.02x = 796,988.70 × 278,389.26
  4. Step 4: Simplify right side
    531,169.02x = 221,873,094,421.36
  5. Step 5: Solve for x
    x = 221,873,094,421.36/531,169.02
  6. Step 6: Final answer
    x = 417,707.14

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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.