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Finding the Fourth Proportional to 1,635,294, 2,256,740.28 and 919,902

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Solution

The fourth proportional to 1,635,294, 2,256,740.28 and 919,902 is: 1,269,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635,294 : 2,256,740.28 = 919,902 : x
  2. Step 2: Convert to fraction form
    1,635,294/2,256,740.28 = 919,902/x
  3. Step 3: Cross multiply
    1,635,294x = 2,256,740.28 × 919,902
  4. Step 4: Simplify right side
    1,635,294x = 2,075,979,897,052.56
  5. Step 5: Solve for x
    x = 2,075,979,897,052.56/1,635,294
  6. Step 6: Final answer
    x = 1,269,484.20

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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.