Home / 1,787,979.65-2,467,442.76-972,188.86

Finding the Fourth Proportional to 1,787,979.65, 2,467,442.76 and 972,188.86

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Solution

The fourth proportional to 1,787,979.65, 2,467,442.76 and 972,188.86 is: 1,341,637.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,979.65 : 2,467,442.76 = 972,188.86 : x
  2. Step 2: Convert to fraction form
    1,787,979.65/2,467,442.76 = 972,188.86/x
  3. Step 3: Cross multiply
    1,787,979.65x = 2,467,442.76 × 972,188.86
  4. Step 4: Simplify right side
    1,787,979.65x = 2,398,820,351,832.11
  5. Step 5: Solve for x
    x = 2,398,820,351,832.11/1,787,979.65
  6. Step 6: Final answer
    x = 1,341,637.39

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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.