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Finding the Fourth Proportional to 535,372.68, 739,682.10 and 455,642.76

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Solution

The fourth proportional to 535,372.68, 739,682.10 and 455,642.76 is: 629,525.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,372.68 : 739,682.10 = 455,642.76 : x
  2. Step 2: Convert to fraction form
    535,372.68/739,682.10 = 455,642.76/x
  3. Step 3: Cross multiply
    535,372.68x = 739,682.10 × 455,642.76
  4. Step 4: Simplify right side
    535,372.68x = 337,030,793,566.60
  5. Step 5: Solve for x
    x = 337,030,793,566.60/535,372.68
  6. Step 6: Final answer
    x = 629,525.57

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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.