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Finding the Fourth Proportional to 891,851.72, 1,230,405.04 and 509,673.48

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Solution

The fourth proportional to 891,851.72, 1,230,405.04 and 509,673.48 is: 703,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,851.72 : 1,230,405.04 = 509,673.48 : x
  2. Step 2: Convert to fraction form
    891,851.72/1,230,405.04 = 509,673.48/x
  3. Step 3: Cross multiply
    891,851.72x = 1,230,405.04 × 509,673.48
  4. Step 4: Simplify right side
    891,851.72x = 627,104,818,546.34
  5. Step 5: Solve for x
    x = 627,104,818,546.34/891,851.72
  6. Step 6: Final answer
    x = 703,149.19

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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.