Home / 876,138.44-1,209,618.32-671,796.72

Finding the Fourth Proportional to 876,138.44, 1,209,618.32 and 671,796.72

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Solution

The fourth proportional to 876,138.44, 1,209,618.32 and 671,796.72 is: 927,499.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,138.44 : 1,209,618.32 = 671,796.72 : x
  2. Step 2: Convert to fraction form
    876,138.44/1,209,618.32 = 671,796.72/x
  3. Step 3: Cross multiply
    876,138.44x = 1,209,618.32 × 671,796.72
  4. Step 4: Simplify right side
    876,138.44x = 812,617,616,468.93
  5. Step 5: Solve for x
    x = 812,617,616,468.93/876,138.44
  6. Step 6: Final answer
    x = 927,499.11

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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.