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Finding the Fourth Proportional to 522,415.62, 783,624.27 and 143,341.56

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Solution

The fourth proportional to 522,415.62, 783,624.27 and 143,341.56 is: 215,012.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,415.62 : 783,624.27 = 143,341.56 : x
  2. Step 2: Convert to fraction form
    522,415.62/783,624.27 = 143,341.56/x
  3. Step 3: Cross multiply
    522,415.62x = 783,624.27 × 143,341.56
  4. Step 4: Simplify right side
    522,415.62x = 112,325,925,315.66
  5. Step 5: Solve for x
    x = 112,325,925,315.66/522,415.62
  6. Step 6: Final answer
    x = 215,012.57

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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.