Home / 828,000.30-1,240,469.55-471,956.70

Finding the Fourth Proportional to 828,000.30, 1,240,469.55 and 471,956.70

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Solution

The fourth proportional to 828,000.30, 1,240,469.55 and 471,956.70 is: 707,062.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,000.30 : 1,240,469.55 = 471,956.70 : x
  2. Step 2: Convert to fraction form
    828,000.30/1,240,469.55 = 471,956.70/x
  3. Step 3: Cross multiply
    828,000.30x = 1,240,469.55 × 471,956.70
  4. Step 4: Simplify right side
    828,000.30x = 585,447,915,268.49
  5. Step 5: Solve for x
    x = 585,447,915,268.49/828,000.30
  6. Step 6: Final answer
    x = 707,062.44

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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.