Home / 1,217,715.72-1,826,535.91-578,479.61

Finding the Fourth Proportional to 1,217,715.72, 1,826,535.91 and 578,479.61

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Solution

The fourth proportional to 1,217,715.72, 1,826,535.91 and 578,479.61 is: 867,701.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,715.72 : 1,826,535.91 = 578,479.61 : x
  2. Step 2: Convert to fraction form
    1,217,715.72/1,826,535.91 = 578,479.61/x
  3. Step 3: Cross multiply
    1,217,715.72x = 1,826,535.91 × 578,479.61
  4. Step 4: Simplify right side
    1,217,715.72x = 1,056,613,780,867.80
  5. Step 5: Solve for x
    x = 1,056,613,780,867.80/1,217,715.72
  6. Step 6: Final answer
    x = 867,701.52

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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.