Home / 530,720.45-731,914.21-349,365.30

Finding the Fourth Proportional to 530,720.45, 731,914.21 and 349,365.30

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Solution

The fourth proportional to 530,720.45, 731,914.21 and 349,365.30 is: 481,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,720.45 : 731,914.21 = 349,365.30 : x
  2. Step 2: Convert to fraction form
    530,720.45/731,914.21 = 349,365.30/x
  3. Step 3: Cross multiply
    530,720.45x = 731,914.21 × 349,365.30
  4. Step 4: Simplify right side
    530,720.45x = 255,705,427,550.91
  5. Step 5: Solve for x
    x = 255,705,427,550.91/530,720.45
  6. Step 6: Final answer
    x = 481,808.13

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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.