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Finding the Fourth Proportional to 655,189.59, 904,087.38 and 368,702.31

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Solution

The fourth proportional to 655,189.59, 904,087.38 and 368,702.31 is: 508,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,189.59 : 904,087.38 = 368,702.31 : x
  2. Step 2: Convert to fraction form
    655,189.59/904,087.38 = 368,702.31/x
  3. Step 3: Cross multiply
    655,189.59x = 904,087.38 × 368,702.31
  4. Step 4: Simplify right side
    655,189.59x = 333,339,105,447.85
  5. Step 5: Solve for x
    x = 333,339,105,447.85/655,189.59
  6. Step 6: Final answer
    x = 508,767.40

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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.