Home / 627,502.10-865,919.76-355,573.26

Finding the Fourth Proportional to 627,502.10, 865,919.76 and 355,573.26

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Solution

The fourth proportional to 627,502.10, 865,919.76 and 355,573.26 is: 490,672.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,502.10 : 865,919.76 = 355,573.26 : x
  2. Step 2: Convert to fraction form
    627,502.10/865,919.76 = 355,573.26/x
  3. Step 3: Cross multiply
    627,502.10x = 865,919.76 × 355,573.26
  4. Step 4: Simplify right side
    627,502.10x = 307,897,911,961.62
  5. Step 5: Solve for x
    x = 307,897,911,961.62/627,502.10
  6. Step 6: Final answer
    x = 490,672.32

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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.