Home / 772,766.80-1,159,138.05-211,801.30

Finding the Fourth Proportional to 772,766.80, 1,159,138.05 and 211,801.30

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Solution

The fourth proportional to 772,766.80, 1,159,138.05 and 211,801.30 is: 317,698.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,766.80 : 1,159,138.05 = 211,801.30 : x
  2. Step 2: Convert to fraction form
    772,766.80/1,159,138.05 = 211,801.30/x
  3. Step 3: Cross multiply
    772,766.80x = 1,159,138.05 × 211,801.30
  4. Step 4: Simplify right side
    772,766.80x = 245,506,945,869.47
  5. Step 5: Solve for x
    x = 245,506,945,869.47/772,766.80
  6. Step 6: Final answer
    x = 317,698.62

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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.