Home / 547,445.84-755,421.27-305,723.22

Finding the Fourth Proportional to 547,445.84, 755,421.27 and 305,723.22

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Solution

The fourth proportional to 547,445.84, 755,421.27 and 305,723.22 is: 421,867.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,445.84 : 755,421.27 = 305,723.22 : x
  2. Step 2: Convert to fraction form
    547,445.84/755,421.27 = 305,723.22/x
  3. Step 3: Cross multiply
    547,445.84x = 755,421.27 × 305,723.22
  4. Step 4: Simplify right side
    547,445.84x = 230,949,823,120.89
  5. Step 5: Solve for x
    x = 230,949,823,120.89/547,445.84
  6. Step 6: Final answer
    x = 421,867.89

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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.