Home / 1,030,416.26-1,420,331.36-812,269.22

Finding the Fourth Proportional to 1,030,416.26, 1,420,331.36 and 812,269.22

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Solution

The fourth proportional to 1,030,416.26, 1,420,331.36 and 812,269.22 is: 1,119,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,416.26 : 1,420,331.36 = 812,269.22 : x
  2. Step 2: Convert to fraction form
    1,030,416.26/1,420,331.36 = 812,269.22/x
  3. Step 3: Cross multiply
    1,030,416.26x = 1,420,331.36 × 812,269.22
  4. Step 4: Simplify right side
    1,030,416.26x = 1,153,691,434,765.74
  5. Step 5: Solve for x
    x = 1,153,691,434,765.74/1,030,416.26
  6. Step 6: Final answer
    x = 1,119,636.29

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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.