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Finding the Fourth Proportional to 1,392,048, 2,088,072 and 341,424

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Solution

The fourth proportional to 1,392,048, 2,088,072 and 341,424 is: 512,136

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,048 : 2,088,072 = 341,424 : x
  2. Step 2: Convert to fraction form
    1,392,048/2,088,072 = 341,424/x
  3. Step 3: Cross multiply
    1,392,048x = 2,088,072 × 341,424
  4. Step 4: Simplify right side
    1,392,048x = 712,917,894,528
  5. Step 5: Solve for x
    x = 712,917,894,528/1,392,048
  6. Step 6: Final answer
    x = 512,136

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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.