Home / 863,541.20-1,294,697.40-330,856.40

Finding the Fourth Proportional to 863,541.20, 1,294,697.40 and 330,856.40

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Solution

The fourth proportional to 863,541.20, 1,294,697.40 and 330,856.40 is: 496,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,541.20 : 1,294,697.40 = 330,856.40 : x
  2. Step 2: Convert to fraction form
    863,541.20/1,294,697.40 = 330,856.40/x
  3. Step 3: Cross multiply
    863,541.20x = 1,294,697.40 × 330,856.40
  4. Step 4: Simplify right side
    863,541.20x = 428,358,920,853.36
  5. Step 5: Solve for x
    x = 428,358,920,853.36/863,541.20
  6. Step 6: Final answer
    x = 496,049.20

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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.