Home / 1,393,508.79-2,090,039.45-382,394.61

Finding the Fourth Proportional to 1,393,508.79, 2,090,039.45 and 382,394.61

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Solution

The fourth proportional to 1,393,508.79, 2,090,039.45 and 382,394.61 is: 573,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,508.79 : 2,090,039.45 = 382,394.61 : x
  2. Step 2: Convert to fraction form
    1,393,508.79/2,090,039.45 = 382,394.61/x
  3. Step 3: Cross multiply
    1,393,508.79x = 2,090,039.45 × 382,394.61
  4. Step 4: Simplify right side
    1,393,508.79x = 799,219,818,455.39
  5. Step 5: Solve for x
    x = 799,219,818,455.39/1,393,508.79
  6. Step 6: Final answer
    x = 573,530.52

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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.