Home / 815,703.89-1,125,640.05-453,150.54

Finding the Fourth Proportional to 815,703.89, 1,125,640.05 and 453,150.54

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Solution

The fourth proportional to 815,703.89, 1,125,640.05 and 453,150.54 is: 625,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,703.89 : 1,125,640.05 = 453,150.54 : x
  2. Step 2: Convert to fraction form
    815,703.89/1,125,640.05 = 453,150.54/x
  3. Step 3: Cross multiply
    815,703.89x = 1,125,640.05 × 453,150.54
  4. Step 4: Simplify right side
    815,703.89x = 510,084,396,503.13
  5. Step 5: Solve for x
    x = 510,084,396,503.13/815,703.89
  6. Step 6: Final answer
    x = 625,330.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.