Home / 889,760.40-1,334,006.52-416,187.60

Finding the Fourth Proportional to 889,760.40, 1,334,006.52 and 416,187.60

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Solution

The fourth proportional to 889,760.40, 1,334,006.52 and 416,187.60 is: 623,984.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,760.40 : 1,334,006.52 = 416,187.60 : x
  2. Step 2: Convert to fraction form
    889,760.40/1,334,006.52 = 416,187.60/x
  3. Step 3: Cross multiply
    889,760.40x = 1,334,006.52 × 416,187.60
  4. Step 4: Simplify right side
    889,760.40x = 555,196,971,943.15
  5. Step 5: Solve for x
    x = 555,196,971,943.15/889,760.40
  6. Step 6: Final answer
    x = 623,984.81

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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.