Home / 727,864.80-1,091,797.20-409,000.20

Finding the Fourth Proportional to 727,864.80, 1,091,797.20 and 409,000.20

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Solution

The fourth proportional to 727,864.80, 1,091,797.20 and 409,000.20 is: 613,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,864.80 : 1,091,797.20 = 409,000.20 : x
  2. Step 2: Convert to fraction form
    727,864.80/1,091,797.20 = 409,000.20/x
  3. Step 3: Cross multiply
    727,864.80x = 1,091,797.20 × 409,000.20
  4. Step 4: Simplify right side
    727,864.80x = 446,545,273,159.44
  5. Step 5: Solve for x
    x = 446,545,273,159.44/727,864.80
  6. Step 6: Final answer
    x = 613,500.30

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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.