Home / 925,728.08-1,388,622.78-318,510.53

Finding the Fourth Proportional to 925,728.08, 1,388,622.78 and 318,510.53

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Solution

The fourth proportional to 925,728.08, 1,388,622.78 and 318,510.53 is: 477,776.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,728.08 : 1,388,622.78 = 318,510.53 : x
  2. Step 2: Convert to fraction form
    925,728.08/1,388,622.78 = 318,510.53/x
  3. Step 3: Cross multiply
    925,728.08x = 1,388,622.78 × 318,510.53
  4. Step 4: Simplify right side
    925,728.08x = 442,290,977,627.87
  5. Step 5: Solve for x
    x = 442,290,977,627.87/925,728.08
  6. Step 6: Final answer
    x = 477,776.34

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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.