Home / 385,869.43-578,826.02-119,667.79

Finding the Fourth Proportional to 385,869.43, 578,826.02 and 119,667.79

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Solution

The fourth proportional to 385,869.43, 578,826.02 and 119,667.79 is: 179,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,869.43 : 578,826.02 = 119,667.79 : x
  2. Step 2: Convert to fraction form
    385,869.43/578,826.02 = 119,667.79/x
  3. Step 3: Cross multiply
    385,869.43x = 578,826.02 × 119,667.79
  4. Step 4: Simplify right side
    385,869.43x = 69,266,830,607.90
  5. Step 5: Solve for x
    x = 69,266,830,607.90/385,869.43
  6. Step 6: Final answer
    x = 179,508.47

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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.