Home / 762,682.35-1,143,574.98-289,400.97

Finding the Fourth Proportional to 762,682.35, 1,143,574.98 and 289,400.97

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Solution

The fourth proportional to 762,682.35, 1,143,574.98 and 289,400.97 is: 433,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,682.35 : 1,143,574.98 = 289,400.97 : x
  2. Step 2: Convert to fraction form
    762,682.35/1,143,574.98 = 289,400.97/x
  3. Step 3: Cross multiply
    762,682.35x = 1,143,574.98 × 289,400.97
  4. Step 4: Simplify right side
    762,682.35x = 330,951,708,479.73
  5. Step 5: Solve for x
    x = 330,951,708,479.73/762,682.35
  6. Step 6: Final answer
    x = 433,931.25

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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.