Home / 364,579.40-547,905.90-318,960.20

Finding the Fourth Proportional to 364,579.40, 547,905.90 and 318,960.20

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Solution

The fourth proportional to 364,579.40, 547,905.90 and 318,960.20 is: 479,347.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,579.40 : 547,905.90 = 318,960.20 : x
  2. Step 2: Convert to fraction form
    364,579.40/547,905.90 = 318,960.20/x
  3. Step 3: Cross multiply
    364,579.40x = 547,905.90 × 318,960.20
  4. Step 4: Simplify right side
    364,579.40x = 174,760,175,445.18
  5. Step 5: Solve for x
    x = 174,760,175,445.18/364,579.40
  6. Step 6: Final answer
    x = 479,347.37

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1.5x scale

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.