Home / 774,712.80-1,162,136.16-213,747.30

Finding the Fourth Proportional to 774,712.80, 1,162,136.16 and 213,747.30

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Solution

The fourth proportional to 774,712.80, 1,162,136.16 and 213,747.30 is: 320,639.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,712.80 : 1,162,136.16 = 213,747.30 : x
  2. Step 2: Convert to fraction form
    774,712.80/1,162,136.16 = 213,747.30/x
  3. Step 3: Cross multiply
    774,712.80x = 1,162,136.16 × 213,747.30
  4. Step 4: Simplify right side
    774,712.80x = 248,403,466,432.37
  5. Step 5: Solve for x
    x = 248,403,466,432.37/774,712.80
  6. Step 6: Final answer
    x = 320,639.42

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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.