Home / 729,458.43-1,006,820.60-427,749.63

Finding the Fourth Proportional to 729,458.43, 1,006,820.60 and 427,749.63

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Solution

The fourth proportional to 729,458.43, 1,006,820.60 and 427,749.63 is: 590,392.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,458.43 : 1,006,820.60 = 427,749.63 : x
  2. Step 2: Convert to fraction form
    729,458.43/1,006,820.60 = 427,749.63/x
  3. Step 3: Cross multiply
    729,458.43x = 1,006,820.60 × 427,749.63
  4. Step 4: Simplify right side
    729,458.43x = 430,667,139,126.38
  5. Step 5: Solve for x
    x = 430,667,139,126.38/729,458.43
  6. Step 6: Final answer
    x = 590,392.98

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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.