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Finding the Fourth Proportional to 603,531.40, 904,260.30 and 287,307.40

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Solution

The fourth proportional to 603,531.40, 904,260.30 and 287,307.40 is: 430,467.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,531.40 : 904,260.30 = 287,307.40 : x
  2. Step 2: Convert to fraction form
    603,531.40/904,260.30 = 287,307.40/x
  3. Step 3: Cross multiply
    603,531.40x = 904,260.30 × 287,307.40
  4. Step 4: Simplify right side
    603,531.40x = 259,800,675,716.22
  5. Step 5: Solve for x
    x = 259,800,675,716.22/603,531.40
  6. Step 6: Final answer
    x = 430,467.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.