Home / 891,905.55-1,230,830.49-509,940.33

Finding the Fourth Proportional to 891,905.55, 1,230,830.49 and 509,940.33

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Solution

The fourth proportional to 891,905.55, 1,230,830.49 and 509,940.33 is: 703,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,905.55 : 1,230,830.49 = 509,940.33 : x
  2. Step 2: Convert to fraction form
    891,905.55/1,230,830.49 = 509,940.33/x
  3. Step 3: Cross multiply
    891,905.55x = 1,230,830.49 × 509,940.33
  4. Step 4: Simplify right side
    891,905.55x = 627,650,100,672.91
  5. Step 5: Solve for x
    x = 627,650,100,672.91/891,905.55
  6. Step 6: Final answer
    x = 703,718.13

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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.