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Finding the Fourth Proportional to 910,801, 1,256,889.82 and 502,892.68

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Solution

The fourth proportional to 910,801, 1,256,889.82 and 502,892.68 is: 693,983.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,801 : 1,256,889.82 = 502,892.68 : x
  2. Step 2: Convert to fraction form
    910,801/1,256,889.82 = 502,892.68/x
  3. Step 3: Cross multiply
    910,801x = 1,256,889.82 × 502,892.68
  4. Step 4: Simplify right side
    910,801x = 632,080,690,044.52
  5. Step 5: Solve for x
    x = 632,080,690,044.52/910,801
  6. Step 6: Final answer
    x = 693,983.31

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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.