Home / 815,513.91-1,125,423.10-448,006.50

Finding the Fourth Proportional to 815,513.91, 1,125,423.10 and 448,006.50

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Solution

The fourth proportional to 815,513.91, 1,125,423.10 and 448,006.50 is: 618,256.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,513.91 : 1,125,423.10 = 448,006.50 : x
  2. Step 2: Convert to fraction form
    815,513.91/1,125,423.10 = 448,006.50/x
  3. Step 3: Cross multiply
    815,513.91x = 1,125,423.10 × 448,006.50
  4. Step 4: Simplify right side
    815,513.91x = 504,196,858,423.04
  5. Step 5: Solve for x
    x = 504,196,858,423.04/815,513.91
  6. Step 6: Final answer
    x = 618,256.61

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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.