Home / 920,541.51-1,270,337.04-512,634.42

Finding the Fourth Proportional to 920,541.51, 1,270,337.04 and 512,634.42

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Solution

The fourth proportional to 920,541.51, 1,270,337.04 and 512,634.42 is: 707,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,541.51 : 1,270,337.04 = 512,634.42 : x
  2. Step 2: Convert to fraction form
    920,541.51/1,270,337.04 = 512,634.42/x
  3. Step 3: Cross multiply
    920,541.51x = 1,270,337.04 × 512,634.42
  4. Step 4: Simplify right side
    920,541.51x = 651,218,491,704.92
  5. Step 5: Solve for x
    x = 651,218,491,704.92/920,541.51
  6. Step 6: Final answer
    x = 707,429.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.