Home / 775,105.29-1,069,705.20-465,019.48

Finding the Fourth Proportional to 775,105.29, 1,069,705.20 and 465,019.48

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Solution

The fourth proportional to 775,105.29, 1,069,705.20 and 465,019.48 is: 641,762.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,105.29 : 1,069,705.20 = 465,019.48 : x
  2. Step 2: Convert to fraction form
    775,105.29/1,069,705.20 = 465,019.48/x
  3. Step 3: Cross multiply
    775,105.29x = 1,069,705.20 × 465,019.48
  4. Step 4: Simplify right side
    775,105.29x = 497,433,758,938.25
  5. Step 5: Solve for x
    x = 497,433,758,938.25/775,105.29
  6. Step 6: Final answer
    x = 641,762.82

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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.