Home / 889,581.40-1,331,261.70-814,931.80

Finding the Fourth Proportional to 889,581.40, 1,331,261.70 and 814,931.80

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Solution

The fourth proportional to 889,581.40, 1,331,261.70 and 814,931.80 is: 1,219,548.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,581.40 : 1,331,261.70 = 814,931.80 : x
  2. Step 2: Convert to fraction form
    889,581.40/1,331,261.70 = 814,931.80/x
  3. Step 3: Cross multiply
    889,581.40x = 1,331,261.70 × 814,931.80
  4. Step 4: Simplify right side
    889,581.40x = 1,084,887,493,452.06
  5. Step 5: Solve for x
    x = 1,084,887,493,452.06/889,581.40
  6. Step 6: Final answer
    x = 1,219,548.31

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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.