Home / 529,623.90-793,399.05-318,635.10

Finding the Fourth Proportional to 529,623.90, 793,399.05 and 318,635.10

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Solution

The fourth proportional to 529,623.90, 793,399.05 and 318,635.10 is: 477,328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,623.90 : 793,399.05 = 318,635.10 : x
  2. Step 2: Convert to fraction form
    529,623.90/793,399.05 = 318,635.10/x
  3. Step 3: Cross multiply
    529,623.90x = 793,399.05 × 318,635.10
  4. Step 4: Simplify right side
    529,623.90x = 252,804,785,636.66
  5. Step 5: Solve for x
    x = 252,804,785,636.66/529,623.90
  6. Step 6: Final answer
    x = 477,328.88

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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.