Home / 775,269.90-1,069,895.66-469,402.29

Finding the Fourth Proportional to 775,269.90, 1,069,895.66 and 469,402.29

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Solution

The fourth proportional to 775,269.90, 1,069,895.66 and 469,402.29 is: 647,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,269.90 : 1,069,895.66 = 469,402.29 : x
  2. Step 2: Convert to fraction form
    775,269.90/1,069,895.66 = 469,402.29/x
  3. Step 3: Cross multiply
    775,269.90x = 1,069,895.66 × 469,402.29
  4. Step 4: Simplify right side
    775,269.90x = 502,211,470,518.05
  5. Step 5: Solve for x
    x = 502,211,470,518.05/775,269.90
  6. Step 6: Final answer
    x = 647,789.20

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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.