Home / 929,768.48-1,393,334.28-389,442.80

Finding the Fourth Proportional to 929,768.48, 1,393,334.28 and 389,442.80

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Solution

The fourth proportional to 929,768.48, 1,393,334.28 and 389,442.80 is: 583,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,768.48 : 1,393,334.28 = 389,442.80 : x
  2. Step 2: Convert to fraction form
    929,768.48/1,393,334.28 = 389,442.80/x
  3. Step 3: Cross multiply
    929,768.48x = 1,393,334.28 × 389,442.80
  4. Step 4: Simplify right side
    929,768.48x = 542,624,003,339.18
  5. Step 5: Solve for x
    x = 542,624,003,339.18/929,768.48
  6. Step 6: Final answer
    x = 583,611.96

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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.