Home / 854,626.12-1,281,035.22-321,916.66

Finding the Fourth Proportional to 854,626.12, 1,281,035.22 and 321,916.66

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Solution

The fourth proportional to 854,626.12, 1,281,035.22 and 321,916.66 is: 482,534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,626.12 : 1,281,035.22 = 321,916.66 : x
  2. Step 2: Convert to fraction form
    854,626.12/1,281,035.22 = 321,916.66/x
  3. Step 3: Cross multiply
    854,626.12x = 1,281,035.22 × 321,916.66
  4. Step 4: Simplify right side
    854,626.12x = 412,386,579,364.77
  5. Step 5: Solve for x
    x = 412,386,579,364.77/854,626.12
  6. Step 6: Final answer
    x = 482,534.49

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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.