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Finding the Fourth Proportional to 610,426.86, 842,384.81 and 338,494.90

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Solution

The fourth proportional to 610,426.86, 842,384.81 and 338,494.90 is: 467,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,426.86 : 842,384.81 = 338,494.90 : x
  2. Step 2: Convert to fraction form
    610,426.86/842,384.81 = 338,494.90/x
  3. Step 3: Cross multiply
    610,426.86x = 842,384.81 × 338,494.90
  4. Step 4: Simplify right side
    610,426.86x = 285,142,962,022.47
  5. Step 5: Solve for x
    x = 285,142,962,022.47/610,426.86
  6. Step 6: Final answer
    x = 467,120.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.