Home / 686,754.20-1,030,568.70-402,444.20

Finding the Fourth Proportional to 686,754.20, 1,030,568.70 and 402,444.20

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Solution

The fourth proportional to 686,754.20, 1,030,568.70 and 402,444.20 is: 603,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,754.20 : 1,030,568.70 = 402,444.20 : x
  2. Step 2: Convert to fraction form
    686,754.20/1,030,568.70 = 402,444.20/x
  3. Step 3: Cross multiply
    686,754.20x = 1,030,568.70 × 402,444.20
  4. Step 4: Simplify right side
    686,754.20x = 414,746,396,016.54
  5. Step 5: Solve for x
    x = 414,746,396,016.54/686,754.20
  6. Step 6: Final answer
    x = 603,922.62

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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.