Home / 766,965.60-1,150,437.60-346,240.80

Finding the Fourth Proportional to 766,965.60, 1,150,437.60 and 346,240.80

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Solution

The fourth proportional to 766,965.60, 1,150,437.60 and 346,240.80 is: 519,356.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,965.60 : 1,150,437.60 = 346,240.80 : x
  2. Step 2: Convert to fraction form
    766,965.60/1,150,437.60 = 346,240.80/x
  3. Step 3: Cross multiply
    766,965.60x = 1,150,437.60 × 346,240.80
  4. Step 4: Simplify right side
    766,965.60x = 398,328,434,974.08
  5. Step 5: Solve for x
    x = 398,328,434,974.08/766,965.60
  6. Step 6: Final answer
    x = 519,356.32

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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.