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Finding the Fourth Proportional to 783,692.73, 1,080,494.79 and 507,562.71

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Solution

The fourth proportional to 783,692.73, 1,080,494.79 and 507,562.71 is: 699,788.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,692.73 : 1,080,494.79 = 507,562.71 : x
  2. Step 2: Convert to fraction form
    783,692.73/1,080,494.79 = 507,562.71/x
  3. Step 3: Cross multiply
    783,692.73x = 1,080,494.79 × 507,562.71
  4. Step 4: Simplify right side
    783,692.73x = 548,418,863,753.28
  5. Step 5: Solve for x
    x = 548,418,863,753.28/783,692.73
  6. Step 6: Final answer
    x = 699,788.12

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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.