Home / 775,105.80-1,069,705.90-465,019.98

Finding the Fourth Proportional to 775,105.80, 1,069,705.90 and 465,019.98

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Solution

The fourth proportional to 775,105.80, 1,069,705.90 and 465,019.98 is: 641,763.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,105.80 : 1,069,705.90 = 465,019.98 : x
  2. Step 2: Convert to fraction form
    775,105.80/1,069,705.90 = 465,019.98/x
  3. Step 3: Cross multiply
    775,105.80x = 1,069,705.90 × 465,019.98
  4. Step 4: Simplify right side
    775,105.80x = 497,434,613,898.78
  5. Step 5: Solve for x
    x = 497,434,613,898.78/775,105.80
  6. Step 6: Final answer
    x = 641,763.51

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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.