Home / 776,578.23-1,071,726.63-427,718.57

Finding the Fourth Proportional to 776,578.23, 1,071,726.63 and 427,718.57

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Solution

The fourth proportional to 776,578.23, 1,071,726.63 and 427,718.57 is: 590,278.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,578.23 : 1,071,726.63 = 427,718.57 : x
  2. Step 2: Convert to fraction form
    776,578.23/1,071,726.63 = 427,718.57/x
  3. Step 3: Cross multiply
    776,578.23x = 1,071,726.63 × 427,718.57
  4. Step 4: Simplify right side
    776,578.23x = 458,397,378,670.92
  5. Step 5: Solve for x
    x = 458,397,378,670.92/776,578.23
  6. Step 6: Final answer
    x = 590,278.43

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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.