Home / 530,719.45-731,912.83-349,364.30

Finding the Fourth Proportional to 530,719.45, 731,912.83 and 349,364.30

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Solution

The fourth proportional to 530,719.45, 731,912.83 and 349,364.30 is: 481,806.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,719.45 : 731,912.83 = 349,364.30 : x
  2. Step 2: Convert to fraction form
    530,719.45/731,912.83 = 349,364.30/x
  3. Step 3: Cross multiply
    530,719.45x = 731,912.83 × 349,364.30
  4. Step 4: Simplify right side
    530,719.45x = 255,704,208,980.99
  5. Step 5: Solve for x
    x = 255,704,208,980.99/530,719.45
  6. Step 6: Final answer
    x = 481,806.74

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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.