Home / 480,378.45-662,973.66-276,438.27

Finding the Fourth Proportional to 480,378.45, 662,973.66 and 276,438.27

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Solution

The fourth proportional to 480,378.45, 662,973.66 and 276,438.27 is: 381,514.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,378.45 : 662,973.66 = 276,438.27 : x
  2. Step 2: Convert to fraction form
    480,378.45/662,973.66 = 276,438.27/x
  3. Step 3: Cross multiply
    480,378.45x = 662,973.66 × 276,438.27
  4. Step 4: Simplify right side
    480,378.45x = 183,271,291,625.97
  5. Step 5: Solve for x
    x = 183,271,291,625.97/480,378.45
  6. Step 6: Final answer
    x = 381,514.39

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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.