Home / 815,275.60-1,223,389.68-341,921.32

Finding the Fourth Proportional to 815,275.60, 1,223,389.68 and 341,921.32

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Solution

The fourth proportional to 815,275.60, 1,223,389.68 and 341,921.32 is: 513,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,275.60 : 1,223,389.68 = 341,921.32 : x
  2. Step 2: Convert to fraction form
    815,275.60/1,223,389.68 = 341,921.32/x
  3. Step 3: Cross multiply
    815,275.60x = 1,223,389.68 × 341,921.32
  4. Step 4: Simplify right side
    815,275.60x = 418,303,014,259.98
  5. Step 5: Solve for x
    x = 418,303,014,259.98/815,275.60
  6. Step 6: Final answer
    x = 513,081.73

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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.