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Finding the Fourth Proportional to 655,688.77, 904,878.31 and 365,300.07

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Solution

The fourth proportional to 655,688.77, 904,878.31 and 365,300.07 is: 504,129.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,688.77 : 904,878.31 = 365,300.07 : x
  2. Step 2: Convert to fraction form
    655,688.77/904,878.31 = 365,300.07/x
  3. Step 3: Cross multiply
    655,688.77x = 904,878.31 × 365,300.07
  4. Step 4: Simplify right side
    655,688.77x = 330,552,109,071.23
  5. Step 5: Solve for x
    x = 330,552,109,071.23/655,688.77
  6. Step 6: Final answer
    x = 504,129.59

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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.