Home / 765,640.59-1,148,702.25-360,816.45

Finding the Fourth Proportional to 765,640.59, 1,148,702.25 and 360,816.45

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Solution

The fourth proportional to 765,640.59, 1,148,702.25 and 360,816.45 is: 541,338.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,640.59 : 1,148,702.25 = 360,816.45 : x
  2. Step 2: Convert to fraction form
    765,640.59/1,148,702.25 = 360,816.45/x
  3. Step 3: Cross multiply
    765,640.59x = 1,148,702.25 × 360,816.45
  4. Step 4: Simplify right side
    765,640.59x = 414,470,667,952.01
  5. Step 5: Solve for x
    x = 414,470,667,952.01/765,640.59
  6. Step 6: Final answer
    x = 541,338.42

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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.