Home / 555,221.04-766,205.30-300,572.23

Finding the Fourth Proportional to 555,221.04, 766,205.30 and 300,572.23

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Solution

The fourth proportional to 555,221.04, 766,205.30 and 300,572.23 is: 414,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,221.04 : 766,205.30 = 300,572.23 : x
  2. Step 2: Convert to fraction form
    555,221.04/766,205.30 = 300,572.23/x
  3. Step 3: Cross multiply
    555,221.04x = 766,205.30 × 300,572.23
  4. Step 4: Simplify right side
    555,221.04x = 230,300,034,155.96
  5. Step 5: Solve for x
    x = 230,300,034,155.96/555,221.04
  6. Step 6: Final answer
    x = 414,789.82

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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.