Home / 364,555.40-547,869.90-318,936.20

Finding the Fourth Proportional to 364,555.40, 547,869.90 and 318,936.20

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Solution

The fourth proportional to 364,555.40, 547,869.90 and 318,936.20 is: 479,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,555.40 : 547,869.90 = 318,936.20 : x
  2. Step 2: Convert to fraction form
    364,555.40/547,869.90 = 318,936.20/x
  3. Step 3: Cross multiply
    364,555.40x = 547,869.90 × 318,936.20
  4. Step 4: Simplify right side
    364,555.40x = 174,735,544,000.38
  5. Step 5: Solve for x
    x = 174,735,544,000.38/364,555.40
  6. Step 6: Final answer
    x = 479,311.36

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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.