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Finding the Fourth Proportional to 848.52, 1,270.62 and 436.50

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Solution

The fourth proportional to 848.52, 1,270.62 and 436.50 is: 653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.52 : 1,270.62 = 436.50 : x
  2. Step 2: Convert to fraction form
    848.52/1,270.62 = 436.50/x
  3. Step 3: Cross multiply
    848.52x = 1,270.62 × 436.50
  4. Step 4: Simplify right side
    848.52x = 554,625.63
  5. Step 5: Solve for x
    x = 554,625.63/848.52
  6. Step 6: Final answer
    x = 653.64

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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.