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Finding the Fourth Proportional to 613,932.40, 922,866.90 and 437,660.20

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Solution

The fourth proportional to 613,932.40, 922,866.90 and 437,660.20 is: 657,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,932.40 : 922,866.90 = 437,660.20 : x
  2. Step 2: Convert to fraction form
    613,932.40/922,866.90 = 437,660.20/x
  3. Step 3: Cross multiply
    613,932.40x = 922,866.90 × 437,660.20
  4. Step 4: Simplify right side
    613,932.40x = 403,902,112,027.38
  5. Step 5: Solve for x
    x = 403,902,112,027.38/613,932.40
  6. Step 6: Final answer
    x = 657,893.46

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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.