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Finding the Fourth Proportional to 655,788.07, 904,973.90 and 365,398.47

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Solution

The fourth proportional to 655,788.07, 904,973.90 and 365,398.47 is: 504,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,788.07 : 904,973.90 = 365,398.47 : x
  2. Step 2: Convert to fraction form
    655,788.07/904,973.90 = 365,398.47/x
  3. Step 3: Cross multiply
    655,788.07x = 904,973.90 × 365,398.47
  4. Step 4: Simplify right side
    655,788.07x = 330,676,081,089.10
  5. Step 5: Solve for x
    x = 330,676,081,089.10/655,788.07
  6. Step 6: Final answer
    x = 504,242.30

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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.