Home / 916,932.96-1,265,303.97-509,002.56

Finding the Fourth Proportional to 916,932.96, 1,265,303.97 and 509,002.56

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Solution

The fourth proportional to 916,932.96, 1,265,303.97 and 509,002.56 is: 702,388.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,932.96 : 1,265,303.97 = 509,002.56 : x
  2. Step 2: Convert to fraction form
    916,932.96/1,265,303.97 = 509,002.56/x
  3. Step 3: Cross multiply
    916,932.96x = 1,265,303.97 × 509,002.56
  4. Step 4: Simplify right side
    916,932.96x = 644,042,959,908.16
  5. Step 5: Solve for x
    x = 644,042,959,908.16/916,932.96
  6. Step 6: Final answer
    x = 702,388.27

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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.