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Finding the Fourth Proportional to 655,490.58, 904,594.50 and 369,021.54

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Solution

The fourth proportional to 655,490.58, 904,594.50 and 369,021.54 is: 509,259.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,490.58 : 904,594.50 = 369,021.54 : x
  2. Step 2: Convert to fraction form
    655,490.58/904,594.50 = 369,021.54/x
  3. Step 3: Cross multiply
    655,490.58x = 904,594.50 × 369,021.54
  4. Step 4: Simplify right side
    655,490.58x = 333,814,855,465.53
  5. Step 5: Solve for x
    x = 333,814,855,465.53/655,490.58
  6. Step 6: Final answer
    x = 509,259.58

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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.