Home / 1,189,898.83-1,785,557.40-431,799.45

Finding the Fourth Proportional to 1,189,898.83, 1,785,557.40 and 431,799.45

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Solution

The fourth proportional to 1,189,898.83, 1,785,557.40 and 431,799.45 is: 647,956.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,898.83 : 1,785,557.40 = 431,799.45 : x
  2. Step 2: Convert to fraction form
    1,189,898.83/1,785,557.40 = 431,799.45/x
  3. Step 3: Cross multiply
    1,189,898.83x = 1,785,557.40 × 431,799.45
  4. Step 4: Simplify right side
    1,189,898.83x = 771,002,703,263.43
  5. Step 5: Solve for x
    x = 771,002,703,263.43/1,189,898.83
  6. Step 6: Final answer
    x = 647,956.52

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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.