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Finding the Fourth Proportional to 493,347.78, 739,280.52 and 380,858.22

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Solution

The fourth proportional to 493,347.78, 739,280.52 and 380,858.22 is: 570,715.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,347.78 : 739,280.52 = 380,858.22 : x
  2. Step 2: Convert to fraction form
    493,347.78/739,280.52 = 380,858.22/x
  3. Step 3: Cross multiply
    493,347.78x = 739,280.52 × 380,858.22
  4. Step 4: Simplify right side
    493,347.78x = 281,561,062,927.87
  5. Step 5: Solve for x
    x = 281,561,062,927.87/493,347.78
  6. Step 6: Final answer
    x = 570,715.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.