Home / 554,869.91-765,719.30-300,221.03

Finding the Fourth Proportional to 554,869.91, 765,719.30 and 300,221.03

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Solution

The fourth proportional to 554,869.91, 765,719.30 and 300,221.03 is: 414,304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,869.91 : 765,719.30 = 300,221.03 : x
  2. Step 2: Convert to fraction form
    554,869.91/765,719.30 = 300,221.03/x
  3. Step 3: Cross multiply
    554,869.91x = 765,719.30 × 300,221.03
  4. Step 4: Simplify right side
    554,869.91x = 229,885,031,607.18
  5. Step 5: Solve for x
    x = 229,885,031,607.18/554,869.91
  6. Step 6: Final answer
    x = 414,304.38

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1.5x scale

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.