Home / 721,639.20-1,082,886.32-402,058.56

Finding the Fourth Proportional to 721,639.20, 1,082,886.32 and 402,058.56

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Solution

The fourth proportional to 721,639.20, 1,082,886.32 and 402,058.56 is: 603,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,639.20 : 1,082,886.32 = 402,058.56 : x
  2. Step 2: Convert to fraction form
    721,639.20/1,082,886.32 = 402,058.56/x
  3. Step 3: Cross multiply
    721,639.20x = 1,082,886.32 × 402,058.56
  4. Step 4: Simplify right side
    721,639.20x = 435,383,714,462.90
  5. Step 5: Solve for x
    x = 435,383,714,462.90/721,639.20
  6. Step 6: Final answer
    x = 603,326.03

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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.