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Finding the Fourth Proportional to 909,072, 1,254,496.28 and 501,164.39

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Solution

The fourth proportional to 909,072, 1,254,496.28 and 501,164.39 is: 691,594.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,072 : 1,254,496.28 = 501,164.39 : x
  2. Step 2: Convert to fraction form
    909,072/1,254,496.28 = 501,164.39/x
  3. Step 3: Cross multiply
    909,072x = 1,254,496.28 × 501,164.39
  4. Step 4: Simplify right side
    909,072x = 628,708,854,145.17
  5. Step 5: Solve for x
    x = 628,708,854,145.17/909,072
  6. Step 6: Final answer
    x = 691,594.12

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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.