Home / 589,459.16-813,453.65-321,187.16

Finding the Fourth Proportional to 589,459.16, 813,453.65 and 321,187.16

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Solution

The fourth proportional to 589,459.16, 813,453.65 and 321,187.16 is: 443,238.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,459.16 : 813,453.65 = 321,187.16 : x
  2. Step 2: Convert to fraction form
    589,459.16/813,453.65 = 321,187.16/x
  3. Step 3: Cross multiply
    589,459.16x = 813,453.65 × 321,187.16
  4. Step 4: Simplify right side
    589,459.16x = 261,270,861,961.93
  5. Step 5: Solve for x
    x = 261,270,861,961.93/589,459.16
  6. Step 6: Final answer
    x = 443,238.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.