Home / 721,284.80-1,082,024.40-248,115.20

Finding the Fourth Proportional to 721,284.80, 1,082,024.40 and 248,115.20

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Solution

The fourth proportional to 721,284.80, 1,082,024.40 and 248,115.20 is: 372,206.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,284.80 : 1,082,024.40 = 248,115.20 : x
  2. Step 2: Convert to fraction form
    721,284.80/1,082,024.40 = 248,115.20/x
  3. Step 3: Cross multiply
    721,284.80x = 1,082,024.40 × 248,115.20
  4. Step 4: Simplify right side
    721,284.80x = 268,466,700,410.88
  5. Step 5: Solve for x
    x = 268,466,700,410.88/721,284.80
  6. Step 6: Final answer
    x = 372,206.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.