Home / 891,930.88-1,230,865.04-509,965.12

Finding the Fourth Proportional to 891,930.88, 1,230,865.04 and 509,965.12

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Solution

The fourth proportional to 891,930.88, 1,230,865.04 and 509,965.12 is: 703,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,930.88 : 1,230,865.04 = 509,965.12 : x
  2. Step 2: Convert to fraction form
    891,930.88/1,230,865.04 = 509,965.12/x
  3. Step 3: Cross multiply
    891,930.88x = 1,230,865.04 × 509,965.12
  4. Step 4: Simplify right side
    891,930.88x = 627,698,237,827.41
  5. Step 5: Solve for x
    x = 627,698,237,827.41/891,930.88
  6. Step 6: Final answer
    x = 703,752.11

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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.