Home / 889,986.40-1,335,125.20-290,773.60

Finding the Fourth Proportional to 889,986.40, 1,335,125.20 and 290,773.60

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Solution

The fourth proportional to 889,986.40, 1,335,125.20 and 290,773.60 is: 436,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,986.40 : 1,335,125.20 = 290,773.60 : x
  2. Step 2: Convert to fraction form
    889,986.40/1,335,125.20 = 290,773.60/x
  3. Step 3: Cross multiply
    889,986.40x = 1,335,125.20 × 290,773.60
  4. Step 4: Simplify right side
    889,986.40x = 388,219,160,854.72
  5. Step 5: Solve for x
    x = 388,219,160,854.72/889,986.40
  6. Step 6: Final answer
    x = 436,207.97

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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.