Home / 926,764.80-1,390,276.80-394,281.60

Finding the Fourth Proportional to 926,764.80, 1,390,276.80 and 394,281.60

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Solution

The fourth proportional to 926,764.80, 1,390,276.80 and 394,281.60 is: 591,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,764.80 : 1,390,276.80 = 394,281.60 : x
  2. Step 2: Convert to fraction form
    926,764.80/1,390,276.80 = 394,281.60/x
  3. Step 3: Cross multiply
    926,764.80x = 1,390,276.80 × 394,281.60
  4. Step 4: Simplify right side
    926,764.80x = 548,160,561,146.88
  5. Step 5: Solve for x
    x = 548,160,561,146.88/926,764.80
  6. Step 6: Final answer
    x = 591,477.54

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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.