Home / 572,719.97-790,307.43-331,018.20

Finding the Fourth Proportional to 572,719.97, 790,307.43 and 331,018.20

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Solution

The fourth proportional to 572,719.97, 790,307.43 and 331,018.20 is: 456,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,719.97 : 790,307.43 = 331,018.20 : x
  2. Step 2: Convert to fraction form
    572,719.97/790,307.43 = 331,018.20/x
  3. Step 3: Cross multiply
    572,719.97x = 790,307.43 × 331,018.20
  4. Step 4: Simplify right side
    572,719.97x = 261,606,142,925.23
  5. Step 5: Solve for x
    x = 261,606,142,925.23/572,719.97
  6. Step 6: Final answer
    x = 456,778.46

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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.