Home / 774,431.40-1,161,704.70-275,730.60

Finding the Fourth Proportional to 774,431.40, 1,161,704.70 and 275,730.60

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Solution

The fourth proportional to 774,431.40, 1,161,704.70 and 275,730.60 is: 413,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,431.40 : 1,161,704.70 = 275,730.60 : x
  2. Step 2: Convert to fraction form
    774,431.40/1,161,704.70 = 275,730.60/x
  3. Step 3: Cross multiply
    774,431.40x = 1,161,704.70 × 275,730.60
  4. Step 4: Simplify right side
    774,431.40x = 320,317,533,953.82
  5. Step 5: Solve for x
    x = 320,317,533,953.82/774,431.40
  6. Step 6: Final answer
    x = 413,616.41

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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.