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Finding the Fourth Proportional to 545,611.22, 752,682.70 and 423,919.70

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Solution

The fourth proportional to 545,611.22, 752,682.70 and 423,919.70 is: 584,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,611.22 : 752,682.70 = 423,919.70 : x
  2. Step 2: Convert to fraction form
    545,611.22/752,682.70 = 423,919.70/x
  3. Step 3: Cross multiply
    545,611.22x = 752,682.70 × 423,919.70
  4. Step 4: Simplify right side
    545,611.22x = 319,077,020,615.78
  5. Step 5: Solve for x
    x = 319,077,020,615.78/545,611.22
  6. Step 6: Final answer
    x = 584,806.57

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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.