Home / 811,542.96-1,217,649.72-355,898.48

Finding the Fourth Proportional to 811,542.96, 1,217,649.72 and 355,898.48

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Solution

The fourth proportional to 811,542.96, 1,217,649.72 and 355,898.48 is: 533,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,542.96 : 1,217,649.72 = 355,898.48 : x
  2. Step 2: Convert to fraction form
    811,542.96/1,217,649.72 = 355,898.48/x
  3. Step 3: Cross multiply
    811,542.96x = 1,217,649.72 × 355,898.48
  4. Step 4: Simplify right side
    811,542.96x = 433,359,684,520.43
  5. Step 5: Solve for x
    x = 433,359,684,520.43/811,542.96
  6. Step 6: Final answer
    x = 533,994.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.