Home / 349,087.60-523,631.40-323,426.80

Finding the Fourth Proportional to 349,087.60, 523,631.40 and 323,426.80

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Solution

The fourth proportional to 349,087.60, 523,631.40 and 323,426.80 is: 485,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,087.60 : 523,631.40 = 323,426.80 : x
  2. Step 2: Convert to fraction form
    349,087.60/523,631.40 = 323,426.80/x
  3. Step 3: Cross multiply
    349,087.60x = 523,631.40 × 323,426.80
  4. Step 4: Simplify right side
    349,087.60x = 169,356,428,081.52
  5. Step 5: Solve for x
    x = 169,356,428,081.52/349,087.60
  6. Step 6: Final answer
    x = 485,140.20

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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.