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Finding the Fourth Proportional to 655,185.90, 904,153.64 and 368,710.76

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Solution

The fourth proportional to 655,185.90, 904,153.64 and 368,710.76 is: 508,819.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,185.90 : 904,153.64 = 368,710.76 : x
  2. Step 2: Convert to fraction form
    655,185.90/904,153.64 = 368,710.76/x
  3. Step 3: Cross multiply
    655,185.90x = 904,153.64 × 368,710.76
  4. Step 4: Simplify right side
    655,185.90x = 333,371,175,761.17
  5. Step 5: Solve for x
    x = 333,371,175,761.17/655,185.90
  6. Step 6: Final answer
    x = 508,819.22

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1.5x scale

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.