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Finding the Fourth Proportional to 385,799.79, 578,488.26 and 119,486.37

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Solution

The fourth proportional to 385,799.79, 578,488.26 and 119,486.37 is: 179,164.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,799.79 : 578,488.26 = 119,486.37 : x
  2. Step 2: Convert to fraction form
    385,799.79/578,488.26 = 119,486.37/x
  3. Step 3: Cross multiply
    385,799.79x = 578,488.26 × 119,486.37
  4. Step 4: Simplify right side
    385,799.79x = 69,121,462,275.02
  5. Step 5: Solve for x
    x = 69,121,462,275.02/385,799.79
  6. Step 6: Final answer
    x = 179,164.07

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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.