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Finding the Fourth Proportional to 655,564.48, 904,678.71 and 383,684.15

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Solution

The fourth proportional to 655,564.48, 904,678.71 and 383,684.15 is: 529,483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,564.48 : 904,678.71 = 383,684.15 : x
  2. Step 2: Convert to fraction form
    655,564.48/904,678.71 = 383,684.15/x
  3. Step 3: Cross multiply
    655,564.48x = 904,678.71 × 383,684.15
  4. Step 4: Simplify right side
    655,564.48x = 347,110,881,869.45
  5. Step 5: Solve for x
    x = 347,110,881,869.45/655,564.48
  6. Step 6: Final answer
    x = 529,483.97

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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.