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Finding the Fourth Proportional to 1,343,897, 1,854,577.86 and 740,285

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Solution

The fourth proportional to 1,343,897, 1,854,577.86 and 740,285 is: 1,021,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,897 : 1,854,577.86 = 740,285 : x
  2. Step 2: Convert to fraction form
    1,343,897/1,854,577.86 = 740,285/x
  3. Step 3: Cross multiply
    1,343,897x = 1,854,577.86 × 740,285
  4. Step 4: Simplify right side
    1,343,897x = 1,372,916,171,090.10
  5. Step 5: Solve for x
    x = 1,372,916,171,090.10/1,343,897
  6. Step 6: Final answer
    x = 1,021,593.30

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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.