Home / 385,865.31-578,934.05-119,692.83

Finding the Fourth Proportional to 385,865.31, 578,934.05 and 119,692.83

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Solution

The fourth proportional to 385,865.31, 578,934.05 and 119,692.83 is: 179,581.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,865.31 : 578,934.05 = 119,692.83 : x
  2. Step 2: Convert to fraction form
    385,865.31/578,934.05 = 119,692.83/x
  3. Step 3: Cross multiply
    385,865.31x = 578,934.05 × 119,692.83
  4. Step 4: Simplify right side
    385,865.31x = 69,294,254,229.40
  5. Step 5: Solve for x
    x = 69,294,254,229.40/385,865.31
  6. Step 6: Final answer
    x = 179,581.46

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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.