Home / 472,256.12-651,198.89-319,028.40

Finding the Fourth Proportional to 472,256.12, 651,198.89 and 319,028.40

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Solution

The fourth proportional to 472,256.12, 651,198.89 and 319,028.40 is: 439,911.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,256.12 : 651,198.89 = 319,028.40 : x
  2. Step 2: Convert to fraction form
    472,256.12/651,198.89 = 319,028.40/x
  3. Step 3: Cross multiply
    472,256.12x = 651,198.89 × 319,028.40
  4. Step 4: Simplify right side
    472,256.12x = 207,750,938,363.33
  5. Step 5: Solve for x
    x = 207,750,938,363.33/472,256.12
  6. Step 6: Final answer
    x = 439,911.59

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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.