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Finding the Fourth Proportional to 891,887.64, 1,230,805.79 and 509,922.42

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Solution

The fourth proportional to 891,887.64, 1,230,805.79 and 509,922.42 is: 703,693.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,887.64 : 1,230,805.79 = 509,922.42 : x
  2. Step 2: Convert to fraction form
    891,887.64/1,230,805.79 = 509,922.42/x
  3. Step 3: Cross multiply
    891,887.64x = 1,230,805.79 × 509,922.42
  4. Step 4: Simplify right side
    891,887.64x = 627,615,464,437.20
  5. Step 5: Solve for x
    x = 627,615,464,437.20/891,887.64
  6. Step 6: Final answer
    x = 703,693.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.