Home / 890,444.90-1,228,999.59-818,711.30

Finding the Fourth Proportional to 890,444.90, 1,228,999.59 and 818,711.30

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Solution

The fourth proportional to 890,444.90, 1,228,999.59 and 818,711.30 is: 1,129,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,444.90 : 1,228,999.59 = 818,711.30 : x
  2. Step 2: Convert to fraction form
    890,444.90/1,228,999.59 = 818,711.30/x
  3. Step 3: Cross multiply
    890,444.90x = 1,228,999.59 × 818,711.30
  4. Step 4: Simplify right side
    890,444.90x = 1,006,195,852,028.37
  5. Step 5: Solve for x
    x = 1,006,195,852,028.37/890,444.90
  6. Step 6: Final answer
    x = 1,129,992.27

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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.