Home / 702,821.96-969,890.20-380,525.28

Finding the Fourth Proportional to 702,821.96, 969,890.20 and 380,525.28

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Solution

The fourth proportional to 702,821.96, 969,890.20 and 380,525.28 is: 525,122.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,821.96 : 969,890.20 = 380,525.28 : x
  2. Step 2: Convert to fraction form
    702,821.96/969,890.20 = 380,525.28/x
  3. Step 3: Cross multiply
    702,821.96x = 969,890.20 × 380,525.28
  4. Step 4: Simplify right side
    702,821.96x = 369,067,739,924.26
  5. Step 5: Solve for x
    x = 369,067,739,924.26/702,821.96
  6. Step 6: Final answer
    x = 525,122.66

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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.