Home / 1,330,343.35-1,996,007.10-431,814.40

Finding the Fourth Proportional to 1,330,343.35, 1,996,007.10 and 431,814.40

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Solution

The fourth proportional to 1,330,343.35, 1,996,007.10 and 431,814.40 is: 647,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,343.35 : 1,996,007.10 = 431,814.40 : x
  2. Step 2: Convert to fraction form
    1,330,343.35/1,996,007.10 = 431,814.40/x
  3. Step 3: Cross multiply
    1,330,343.35x = 1,996,007.10 × 431,814.40
  4. Step 4: Simplify right side
    1,330,343.35x = 861,904,608,282.24
  5. Step 5: Solve for x
    x = 861,904,608,282.24/1,330,343.35
  6. Step 6: Final answer
    x = 647,881.32

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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.