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Finding the Fourth Proportional to 566,752.68, 780,788.40 and 394,374.22

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Solution

The fourth proportional to 566,752.68, 780,788.40 and 394,374.22 is: 543,310.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,752.68 : 780,788.40 = 394,374.22 : x
  2. Step 2: Convert to fraction form
    566,752.68/780,788.40 = 394,374.22/x
  3. Step 3: Cross multiply
    566,752.68x = 780,788.40 × 394,374.22
  4. Step 4: Simplify right side
    566,752.68x = 307,922,812,804.17
  5. Step 5: Solve for x
    x = 307,922,812,804.17/566,752.68
  6. Step 6: Final answer
    x = 543,310.73

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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.