Home / 3,145,248.96-4,709,869.02-2,078,692.80

Finding the Fourth Proportional to 3,145,248.96, 4,709,869.02 and 2,078,692.80

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Solution

The fourth proportional to 3,145,248.96, 4,709,869.02 and 2,078,692.80 is: 3,112,749.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145,248.96 : 4,709,869.02 = 2,078,692.80 : x
  2. Step 2: Convert to fraction form
    3,145,248.96/4,709,869.02 = 2,078,692.80/x
  3. Step 3: Cross multiply
    3,145,248.96x = 4,709,869.02 × 2,078,692.80
  4. Step 4: Simplify right side
    3,145,248.96x = 9,790,370,820,817.06
  5. Step 5: Solve for x
    x = 9,790,370,820,817.06/3,145,248.96
  6. Step 6: Final answer
    x = 3,112,749.08

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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.