Home / 1,216,568.89-1,678,847.54-672,692.70

Finding the Fourth Proportional to 1,216,568.89, 1,678,847.54 and 672,692.70

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Solution

The fourth proportional to 1,216,568.89, 1,678,847.54 and 672,692.70 is: 928,306.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,568.89 : 1,678,847.54 = 672,692.70 : x
  2. Step 2: Convert to fraction form
    1,216,568.89/1,678,847.54 = 672,692.70/x
  3. Step 3: Cross multiply
    1,216,568.89x = 1,678,847.54 × 672,692.70
  4. Step 4: Simplify right side
    1,216,568.89x = 1,129,348,484,570.96
  5. Step 5: Solve for x
    x = 1,129,348,484,570.96/1,216,568.89
  6. Step 6: Final answer
    x = 928,306.23

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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.