Home / 804,725.20-1,208,009.40-472,488.40

Finding the Fourth Proportional to 804,725.20, 1,208,009.40 and 472,488.40

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Solution

The fourth proportional to 804,725.20, 1,208,009.40 and 472,488.40 is: 709,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,725.20 : 1,208,009.40 = 472,488.40 : x
  2. Step 2: Convert to fraction form
    804,725.20/1,208,009.40 = 472,488.40/x
  3. Step 3: Cross multiply
    804,725.20x = 1,208,009.40 × 472,488.40
  4. Step 4: Simplify right side
    804,725.20x = 570,770,428,590.96
  5. Step 5: Solve for x
    x = 570,770,428,590.96/804,725.20
  6. Step 6: Final answer
    x = 709,273.71

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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.