Home / 679,956.10-1,019,934.15-280,464.10

Finding the Fourth Proportional to 679,956.10, 1,019,934.15 and 280,464.10

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Solution

The fourth proportional to 679,956.10, 1,019,934.15 and 280,464.10 is: 420,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,956.10 : 1,019,934.15 = 280,464.10 : x
  2. Step 2: Convert to fraction form
    679,956.10/1,019,934.15 = 280,464.10/x
  3. Step 3: Cross multiply
    679,956.10x = 1,019,934.15 × 280,464.10
  4. Step 4: Simplify right side
    679,956.10x = 286,054,913,439.02
  5. Step 5: Solve for x
    x = 286,054,913,439.02/679,956.10
  6. Step 6: Final answer
    x = 420,696.15

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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.