Home / 693,426.80-1,040,140.20-394,828.40

Finding the Fourth Proportional to 693,426.80, 1,040,140.20 and 394,828.40

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Solution

The fourth proportional to 693,426.80, 1,040,140.20 and 394,828.40 is: 592,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,426.80 : 1,040,140.20 = 394,828.40 : x
  2. Step 2: Convert to fraction form
    693,426.80/1,040,140.20 = 394,828.40/x
  3. Step 3: Cross multiply
    693,426.80x = 1,040,140.20 × 394,828.40
  4. Step 4: Simplify right side
    693,426.80x = 410,676,890,941.68
  5. Step 5: Solve for x
    x = 410,676,890,941.68/693,426.80
  6. Step 6: Final answer
    x = 592,242.60

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1.5x scale

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.