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Finding the Fourth Proportional to 885,692.81, 1,328,750.02 and 286,653.97

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Solution

The fourth proportional to 885,692.81, 1,328,750.02 and 286,653.97 is: 430,049.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,692.81 : 1,328,750.02 = 286,653.97 : x
  2. Step 2: Convert to fraction form
    885,692.81/1,328,750.02 = 286,653.97/x
  3. Step 3: Cross multiply
    885,692.81x = 1,328,750.02 × 286,653.97
  4. Step 4: Simplify right side
    885,692.81x = 380,891,468,370.58
  5. Step 5: Solve for x
    x = 380,891,468,370.58/885,692.81
  6. Step 6: Final answer
    x = 430,049.18

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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.