Home / 767,728.60-1,151,247.30-346,787.80

Finding the Fourth Proportional to 767,728.60, 1,151,247.30 and 346,787.80

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Solution

The fourth proportional to 767,728.60, 1,151,247.30 and 346,787.80 is: 520,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,728.60 : 1,151,247.30 = 346,787.80 : x
  2. Step 2: Convert to fraction form
    767,728.60/1,151,247.30 = 346,787.80/x
  3. Step 3: Cross multiply
    767,728.60x = 1,151,247.30 × 346,787.80
  4. Step 4: Simplify right side
    767,728.60x = 399,238,518,422.94
  5. Step 5: Solve for x
    x = 399,238,518,422.94/767,728.60
  6. Step 6: Final answer
    x = 520,025.59

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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.