Home / 891,509.76-1,229,984.16-509,265.84

Finding the Fourth Proportional to 891,509.76, 1,229,984.16 and 509,265.84

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Solution

The fourth proportional to 891,509.76, 1,229,984.16 and 509,265.84 is: 702,615.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,509.76 : 1,229,984.16 = 509,265.84 : x
  2. Step 2: Convert to fraction form
    891,509.76/1,229,984.16 = 509,265.84/x
  3. Step 3: Cross multiply
    891,509.76x = 1,229,984.16 × 509,265.84
  4. Step 4: Simplify right side
    891,509.76x = 626,388,916,429.09
  5. Step 5: Solve for x
    x = 626,388,916,429.09/891,509.76
  6. Step 6: Final answer
    x = 702,615.88

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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.