Home / 884,964.72-1,221,242.47-492,491.07

Finding the Fourth Proportional to 884,964.72, 1,221,242.47 and 492,491.07

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Solution

The fourth proportional to 884,964.72, 1,221,242.47 and 492,491.07 is: 679,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,964.72 : 1,221,242.47 = 492,491.07 : x
  2. Step 2: Convert to fraction form
    884,964.72/1,221,242.47 = 492,491.07/x
  3. Step 3: Cross multiply
    884,964.72x = 1,221,242.47 × 492,491.07
  4. Step 4: Simplify right side
    884,964.72x = 601,451,009,548.52
  5. Step 5: Solve for x
    x = 601,451,009,548.52/884,964.72
  6. Step 6: Final answer
    x = 679,632.75

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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.