Home / 486,938.20-731,282.10-353,968.60

Finding the Fourth Proportional to 486,938.20, 731,282.10 and 353,968.60

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Solution

The fourth proportional to 486,938.20, 731,282.10 and 353,968.60 is: 531,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,938.20 : 731,282.10 = 353,968.60 : x
  2. Step 2: Convert to fraction form
    486,938.20/731,282.10 = 353,968.60/x
  3. Step 3: Cross multiply
    486,938.20x = 731,282.10 × 353,968.60
  4. Step 4: Simplify right side
    486,938.20x = 258,850,901,142.06
  5. Step 5: Solve for x
    x = 258,850,901,142.06/486,938.20
  6. Step 6: Final answer
    x = 531,588.82

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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.