Home / 738,986.20-1,108,479.30-265,719.40

Finding the Fourth Proportional to 738,986.20, 1,108,479.30 and 265,719.40

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Solution

The fourth proportional to 738,986.20, 1,108,479.30 and 265,719.40 is: 398,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,986.20 : 1,108,479.30 = 265,719.40 : x
  2. Step 2: Convert to fraction form
    738,986.20/1,108,479.30 = 265,719.40/x
  3. Step 3: Cross multiply
    738,986.20x = 1,108,479.30 × 265,719.40
  4. Step 4: Simplify right side
    738,986.20x = 294,544,454,508.42
  5. Step 5: Solve for x
    x = 294,544,454,508.42/738,986.20
  6. Step 6: Final answer
    x = 398,579.10

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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.