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Finding the Fourth Proportional to 579,465.46, 799,829 and 349,986.30

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Solution

The fourth proportional to 579,465.46, 799,829 and 349,986.30 is: 483,081.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,465.46 : 799,829 = 349,986.30 : x
  2. Step 2: Convert to fraction form
    579,465.46/799,829 = 349,986.30/x
  3. Step 3: Cross multiply
    579,465.46x = 799,829 × 349,986.30
  4. Step 4: Simplify right side
    579,465.46x = 279,929,192,342.70
  5. Step 5: Solve for x
    x = 279,929,192,342.70/579,465.46
  6. Step 6: Final answer
    x = 483,081.76

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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.