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Finding the Fourth Proportional to 848.24, 1,170.48 and 553.04

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Solution

The fourth proportional to 848.24, 1,170.48 and 553.04 is: 763.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.24 : 1,170.48 = 553.04 : x
  2. Step 2: Convert to fraction form
    848.24/1,170.48 = 553.04/x
  3. Step 3: Cross multiply
    848.24x = 1,170.48 × 553.04
  4. Step 4: Simplify right side
    848.24x = 647,322.26
  5. Step 5: Solve for x
    x = 647,322.26/848.24
  6. Step 6: Final answer
    x = 763.14

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Double scale
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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.