Home / 823,648.20-1,235,472.30-291,223.05

Finding the Fourth Proportional to 823,648.20, 1,235,472.30 and 291,223.05

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Solution

The fourth proportional to 823,648.20, 1,235,472.30 and 291,223.05 is: 436,834.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,648.20 : 1,235,472.30 = 291,223.05 : x
  2. Step 2: Convert to fraction form
    823,648.20/1,235,472.30 = 291,223.05/x
  3. Step 3: Cross multiply
    823,648.20x = 1,235,472.30 × 291,223.05
  4. Step 4: Simplify right side
    823,648.20x = 359,798,011,396.52
  5. Step 5: Solve for x
    x = 359,798,011,396.52/823,648.20
  6. Step 6: Final answer
    x = 436,834.58

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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.