Home / 548,719.01-756,976.47-355,189.15

Finding the Fourth Proportional to 548,719.01, 756,976.47 and 355,189.15

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Solution

The fourth proportional to 548,719.01, 756,976.47 and 355,189.15 is: 489,995.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,719.01 : 756,976.47 = 355,189.15 : x
  2. Step 2: Convert to fraction form
    548,719.01/756,976.47 = 355,189.15/x
  3. Step 3: Cross multiply
    548,719.01x = 756,976.47 × 355,189.15
  4. Step 4: Simplify right side
    548,719.01x = 268,869,828,949.30
  5. Step 5: Solve for x
    x = 268,869,828,949.30/548,719.01
  6. Step 6: Final answer
    x = 489,995.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.