Home / 925,742.46-1,388,254.69-318,415.30

Finding the Fourth Proportional to 925,742.46, 1,388,254.69 and 318,415.30

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Solution

The fourth proportional to 925,742.46, 1,388,254.69 and 318,415.30 is: 477,499.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,742.46 : 1,388,254.69 = 318,415.30 : x
  2. Step 2: Convert to fraction form
    925,742.46/1,388,254.69 = 318,415.30/x
  3. Step 3: Cross multiply
    925,742.46x = 1,388,254.69 × 318,415.30
  4. Step 4: Simplify right side
    925,742.46x = 442,041,533,592.76
  5. Step 5: Solve for x
    x = 442,041,533,592.76/925,742.46
  6. Step 6: Final answer
    x = 477,499.47

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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.