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Finding the Fourth Proportional to 655,085.40, 904,012.02 and 368,599.74

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Solution

The fourth proportional to 655,085.40, 904,012.02 and 368,599.74 is: 508,664.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,085.40 : 904,012.02 = 368,599.74 : x
  2. Step 2: Convert to fraction form
    655,085.40/904,012.02 = 368,599.74/x
  3. Step 3: Cross multiply
    655,085.40x = 904,012.02 × 368,599.74
  4. Step 4: Simplify right side
    655,085.40x = 333,218,595,528.88
  5. Step 5: Solve for x
    x = 333,218,595,528.88/655,085.40
  6. Step 6: Final answer
    x = 508,664.36

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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.