Home / 418,386.12-577,377.36-227,399.55

Finding the Fourth Proportional to 418,386.12, 577,377.36 and 227,399.55

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Solution

The fourth proportional to 418,386.12, 577,377.36 and 227,399.55 is: 313,813.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,386.12 : 577,377.36 = 227,399.55 : x
  2. Step 2: Convert to fraction form
    418,386.12/577,377.36 = 227,399.55/x
  3. Step 3: Cross multiply
    418,386.12x = 577,377.36 × 227,399.55
  4. Step 4: Simplify right side
    418,386.12x = 131,295,351,844.19
  5. Step 5: Solve for x
    x = 131,295,351,844.19/418,386.12
  6. Step 6: Final answer
    x = 313,813.83

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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.