Home / 912,968.28-1,259,933.54-505,063.22

Finding the Fourth Proportional to 912,968.28, 1,259,933.54 and 505,063.22

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Solution

The fourth proportional to 912,968.28, 1,259,933.54 and 505,063.22 is: 697,007.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,968.28 : 1,259,933.54 = 505,063.22 : x
  2. Step 2: Convert to fraction form
    912,968.28/1,259,933.54 = 505,063.22/x
  3. Step 3: Cross multiply
    912,968.28x = 1,259,933.54 × 505,063.22
  4. Step 4: Simplify right side
    912,968.28x = 636,346,081,873.42
  5. Step 5: Solve for x
    x = 636,346,081,873.42/912,968.28
  6. Step 6: Final answer
    x = 697,007.88

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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.