Home / 868,645.52-1,303,142.54-300,047.40

Finding the Fourth Proportional to 868,645.52, 1,303,142.54 and 300,047.40

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Solution

The fourth proportional to 868,645.52, 1,303,142.54 and 300,047.40 is: 450,131.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,645.52 : 1,303,142.54 = 300,047.40 : x
  2. Step 2: Convert to fraction form
    868,645.52/1,303,142.54 = 300,047.40/x
  3. Step 3: Cross multiply
    868,645.52x = 1,303,142.54 × 300,047.40
  4. Step 4: Simplify right side
    868,645.52x = 391,004,530,956.40
  5. Step 5: Solve for x
    x = 391,004,530,956.40/868,645.52
  6. Step 6: Final answer
    x = 450,131.29

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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.