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Finding the Fourth Proportional to 496,607.04, 685,270.26 and 278,765.82

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Solution

The fourth proportional to 496,607.04, 685,270.26 and 278,765.82 is: 384,670.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,607.04 : 685,270.26 = 278,765.82 : x
  2. Step 2: Convert to fraction form
    496,607.04/685,270.26 = 278,765.82/x
  3. Step 3: Cross multiply
    496,607.04x = 685,270.26 × 278,765.82
  4. Step 4: Simplify right side
    496,607.04x = 191,029,925,950.51
  5. Step 5: Solve for x
    x = 191,029,925,950.51/496,607.04
  6. Step 6: Final answer
    x = 384,670.19

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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.