Home / 814,683.08-1,221,866.40-409,767.32

Finding the Fourth Proportional to 814,683.08, 1,221,866.40 and 409,767.32

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Solution

The fourth proportional to 814,683.08, 1,221,866.40 and 409,767.32 is: 614,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,683.08 : 1,221,866.40 = 409,767.32 : x
  2. Step 2: Convert to fraction form
    814,683.08/1,221,866.40 = 409,767.32/x
  3. Step 3: Cross multiply
    814,683.08x = 1,221,866.40 × 409,767.32
  4. Step 4: Simplify right side
    814,683.08x = 500,680,920,126.05
  5. Step 5: Solve for x
    x = 500,680,920,126.05/814,683.08
  6. Step 6: Final answer
    x = 614,571.40

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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.