Home / 1,007,502.98-1,389,288.58-778,097.61

Finding the Fourth Proportional to 1,007,502.98, 1,389,288.58 and 778,097.61

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Solution

The fourth proportional to 1,007,502.98, 1,389,288.58 and 778,097.61 is: 1,072,951.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,502.98 : 1,389,288.58 = 778,097.61 : x
  2. Step 2: Convert to fraction form
    1,007,502.98/1,389,288.58 = 778,097.61/x
  3. Step 3: Cross multiply
    1,007,502.98x = 1,389,288.58 × 778,097.61
  4. Step 4: Simplify right side
    1,007,502.98x = 1,081,002,121,753.05
  5. Step 5: Solve for x
    x = 1,081,002,121,753.05/1,007,502.98
  6. Step 6: Final answer
    x = 1,072,951.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.