Home / 1,007,680.68-1,390,662.18-554,971.56

Finding the Fourth Proportional to 1,007,680.68, 1,390,662.18 and 554,971.56

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Solution

The fourth proportional to 1,007,680.68, 1,390,662.18 and 554,971.56 is: 765,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,680.68 : 1,390,662.18 = 554,971.56 : x
  2. Step 2: Convert to fraction form
    1,007,680.68/1,390,662.18 = 554,971.56/x
  3. Step 3: Cross multiply
    1,007,680.68x = 1,390,662.18 × 554,971.56
  4. Step 4: Simplify right side
    1,007,680.68x = 771,777,959,467.60
  5. Step 5: Solve for x
    x = 771,777,959,467.60/1,007,680.68
  6. Step 6: Final answer
    x = 765,895.36

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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.