Home / 726,747.20-1,090,120.80-569,110.40

Finding the Fourth Proportional to 726,747.20, 1,090,120.80 and 569,110.40

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Solution

The fourth proportional to 726,747.20, 1,090,120.80 and 569,110.40 is: 853,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,747.20 : 1,090,120.80 = 569,110.40 : x
  2. Step 2: Convert to fraction form
    726,747.20/1,090,120.80 = 569,110.40/x
  3. Step 3: Cross multiply
    726,747.20x = 1,090,120.80 × 569,110.40
  4. Step 4: Simplify right side
    726,747.20x = 620,399,084,536.32
  5. Step 5: Solve for x
    x = 620,399,084,536.32/726,747.20
  6. Step 6: Final answer
    x = 853,665.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.