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Finding the Fourth Proportional to 557,987.82, 770,094.42 and 328,566.45

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Solution

The fourth proportional to 557,987.82, 770,094.42 and 328,566.45 is: 453,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,987.82 : 770,094.42 = 328,566.45 : x
  2. Step 2: Convert to fraction form
    557,987.82/770,094.42 = 328,566.45/x
  3. Step 3: Cross multiply
    557,987.82x = 770,094.42 × 328,566.45
  4. Step 4: Simplify right side
    557,987.82x = 253,027,189,479.51
  5. Step 5: Solve for x
    x = 253,027,189,479.51/557,987.82
  6. Step 6: Final answer
    x = 453,463.65

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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.