Home / 890,527.15-1,228,924.31-482,638.90

Finding the Fourth Proportional to 890,527.15, 1,228,924.31 and 482,638.90

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Solution

The fourth proportional to 890,527.15, 1,228,924.31 and 482,638.90 is: 666,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,527.15 : 1,228,924.31 = 482,638.90 : x
  2. Step 2: Convert to fraction form
    890,527.15/1,228,924.31 = 482,638.90/x
  3. Step 3: Cross multiply
    890,527.15x = 1,228,924.31 × 482,638.90
  4. Step 4: Simplify right side
    890,527.15x = 593,126,677,161.66
  5. Step 5: Solve for x
    x = 593,126,677,161.66/890,527.15
  6. Step 6: Final answer
    x = 666,039.97

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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.