Home / 857,985.64-1,184,051.82-518,388.28

Finding the Fourth Proportional to 857,985.64, 1,184,051.82 and 518,388.28

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Solution

The fourth proportional to 857,985.64, 1,184,051.82 and 518,388.28 is: 715,394.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,985.64 : 1,184,051.82 = 518,388.28 : x
  2. Step 2: Convert to fraction form
    857,985.64/1,184,051.82 = 518,388.28/x
  3. Step 3: Cross multiply
    857,985.64x = 1,184,051.82 × 518,388.28
  4. Step 4: Simplify right side
    857,985.64x = 613,798,586,400.67
  5. Step 5: Solve for x
    x = 613,798,586,400.67/857,985.64
  6. Step 6: Final answer
    x = 715,394.94

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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.