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Finding the Fourth Proportional to 655,480.42, 904,649.20 and 369,056.32

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Solution

The fourth proportional to 655,480.42, 904,649.20 and 369,056.32 is: 509,346.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,480.42 : 904,649.20 = 369,056.32 : x
  2. Step 2: Convert to fraction form
    655,480.42/904,649.20 = 369,056.32/x
  3. Step 3: Cross multiply
    655,480.42x = 904,649.20 × 369,056.32
  4. Step 4: Simplify right side
    655,480.42x = 333,866,501,458.68
  5. Step 5: Solve for x
    x = 333,866,501,458.68/655,480.42
  6. Step 6: Final answer
    x = 509,346.26

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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.