Home / 529,619.40-793,392.30-318,630.60

Finding the Fourth Proportional to 529,619.40, 793,392.30 and 318,630.60

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Solution

The fourth proportional to 529,619.40, 793,392.30 and 318,630.60 is: 477,322.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,619.40 : 793,392.30 = 318,630.60 : x
  2. Step 2: Convert to fraction form
    529,619.40/793,392.30 = 318,630.60/x
  3. Step 3: Cross multiply
    529,619.40x = 793,392.30 × 318,630.60
  4. Step 4: Simplify right side
    529,619.40x = 252,799,064,584.38
  5. Step 5: Solve for x
    x = 252,799,064,584.38/529,619.40
  6. Step 6: Final answer
    x = 477,322.14

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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.