Home / 693,107.40-1,039,142.70-377,920.20

Finding the Fourth Proportional to 693,107.40, 1,039,142.70 and 377,920.20

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Solution

The fourth proportional to 693,107.40, 1,039,142.70 and 377,920.20 is: 566,597.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,107.40 : 1,039,142.70 = 377,920.20 : x
  2. Step 2: Convert to fraction form
    693,107.40/1,039,142.70 = 377,920.20/x
  3. Step 3: Cross multiply
    693,107.40x = 1,039,142.70 × 377,920.20
  4. Step 4: Simplify right side
    693,107.40x = 392,713,017,012.54
  5. Step 5: Solve for x
    x = 392,713,017,012.54/693,107.40
  6. Step 6: Final answer
    x = 566,597.64

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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.