Home / 790,818.16-1,185,981.89-285,313.42

Finding the Fourth Proportional to 790,818.16, 1,185,981.89 and 285,313.42

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Solution

The fourth proportional to 790,818.16, 1,185,981.89 and 285,313.42 is: 427,881.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,818.16 : 1,185,981.89 = 285,313.42 : x
  2. Step 2: Convert to fraction form
    790,818.16/1,185,981.89 = 285,313.42/x
  3. Step 3: Cross multiply
    790,818.16x = 1,185,981.89 × 285,313.42
  4. Step 4: Simplify right side
    790,818.16x = 338,376,549,093.96
  5. Step 5: Solve for x
    x = 338,376,549,093.96/790,818.16
  6. Step 6: Final answer
    x = 427,881.61

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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.