Home / 472,419.28-651,919.40-257,555.12

Finding the Fourth Proportional to 472,419.28, 651,919.40 and 257,555.12

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Solution

The fourth proportional to 472,419.28, 651,919.40 and 257,555.12 is: 355,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,419.28 : 651,919.40 = 257,555.12 : x
  2. Step 2: Convert to fraction form
    472,419.28/651,919.40 = 257,555.12/x
  3. Step 3: Cross multiply
    472,419.28x = 651,919.40 × 257,555.12
  4. Step 4: Simplify right side
    472,419.28x = 167,905,179,297.33
  5. Step 5: Solve for x
    x = 167,905,179,297.33/472,419.28
  6. Step 6: Final answer
    x = 355,415.59

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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.