Home / 790,996.50-1,186,913.10-431,426.94

Finding the Fourth Proportional to 790,996.50, 1,186,913.10 and 431,426.94

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Solution

The fourth proportional to 790,996.50, 1,186,913.10 and 431,426.94 is: 647,368.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,996.50 : 1,186,913.10 = 431,426.94 : x
  2. Step 2: Convert to fraction form
    790,996.50/1,186,913.10 = 431,426.94/x
  3. Step 3: Cross multiply
    790,996.50x = 1,186,913.10 × 431,426.94
  4. Step 4: Simplify right side
    790,996.50x = 512,066,286,778.91
  5. Step 5: Solve for x
    x = 512,066,286,778.91/790,996.50
  6. Step 6: Final answer
    x = 647,368.59

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Double scale
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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.