Home / 558,865.31-769,526.24-421,244.21

Finding the Fourth Proportional to 558,865.31, 769,526.24 and 421,244.21

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Solution

The fourth proportional to 558,865.31, 769,526.24 and 421,244.21 is: 580,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,865.31 : 769,526.24 = 421,244.21 : x
  2. Step 2: Convert to fraction form
    558,865.31/769,526.24 = 421,244.21/x
  3. Step 3: Cross multiply
    558,865.31x = 769,526.24 × 421,244.21
  4. Step 4: Simplify right side
    558,865.31x = 324,158,472,860.67
  5. Step 5: Solve for x
    x = 324,158,472,860.67/558,865.31
  6. Step 6: Final answer
    x = 580,029.70

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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.