Home / 1,000,372.68-1,500,105.18-431,484.96

Finding the Fourth Proportional to 1,000,372.68, 1,500,105.18 and 431,484.96

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Solution

The fourth proportional to 1,000,372.68, 1,500,105.18 and 431,484.96 is: 647,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,372.68 : 1,500,105.18 = 431,484.96 : x
  2. Step 2: Convert to fraction form
    1,000,372.68/1,500,105.18 = 431,484.96/x
  3. Step 3: Cross multiply
    1,000,372.68x = 1,500,105.18 × 431,484.96
  4. Step 4: Simplify right side
    1,000,372.68x = 647,272,823,588.09
  5. Step 5: Solve for x
    x = 647,272,823,588.09/1,000,372.68
  6. Step 6: Final answer
    x = 647,031.69

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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.