Home / 430,092.73-641,916.75-422,997.76

Finding the Fourth Proportional to 430,092.73, 641,916.75 and 422,997.76

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Solution

The fourth proportional to 430,092.73, 641,916.75 and 422,997.76 is: 631,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,092.73 : 641,916.75 = 422,997.76 : x
  2. Step 2: Convert to fraction form
    430,092.73/641,916.75 = 422,997.76/x
  3. Step 3: Cross multiply
    430,092.73x = 641,916.75 × 422,997.76
  4. Step 4: Simplify right side
    430,092.73x = 271,529,347,356.48
  5. Step 5: Solve for x
    x = 271,529,347,356.48/430,092.73
  6. Step 6: Final answer
    x = 631,327.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.