Home / 1,008,349.61-1,512,520.32-409,305.71

Finding the Fourth Proportional to 1,008,349.61, 1,512,520.32 and 409,305.71

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Solution

The fourth proportional to 1,008,349.61, 1,512,520.32 and 409,305.71 is: 613,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,349.61 : 1,512,520.32 = 409,305.71 : x
  2. Step 2: Convert to fraction form
    1,008,349.61/1,512,520.32 = 409,305.71/x
  3. Step 3: Cross multiply
    1,008,349.61x = 1,512,520.32 × 409,305.71
  4. Step 4: Simplify right side
    1,008,349.61x = 619,083,196,821.78
  5. Step 5: Solve for x
    x = 619,083,196,821.78/1,008,349.61
  6. Step 6: Final answer
    x = 613,956.90

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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.