Home / 889,793.84-1,227,909.40-481,886.30

Finding the Fourth Proportional to 889,793.84, 1,227,909.40 and 481,886.30

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Solution

The fourth proportional to 889,793.84, 1,227,909.40 and 481,886.30 is: 664,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,793.84 : 1,227,909.40 = 481,886.30 : x
  2. Step 2: Convert to fraction form
    889,793.84/1,227,909.40 = 481,886.30/x
  3. Step 3: Cross multiply
    889,793.84x = 1,227,909.40 × 481,886.30
  4. Step 4: Simplify right side
    889,793.84x = 591,712,717,501.22
  5. Step 5: Solve for x
    x = 591,712,717,501.22/889,793.84
  6. Step 6: Final answer
    x = 664,999.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.