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Finding the Fourth Proportional to 904.32, 1,248.03 and 572.63

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Solution

The fourth proportional to 904.32, 1,248.03 and 572.63 is: 790.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.32 : 1,248.03 = 572.63 : x
  2. Step 2: Convert to fraction form
    904.32/1,248.03 = 572.63/x
  3. Step 3: Cross multiply
    904.32x = 1,248.03 × 572.63
  4. Step 4: Simplify right side
    904.32x = 714,659.42
  5. Step 5: Solve for x
    x = 714,659.42/904.32
  6. Step 6: Final answer
    x = 790.27

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Double scale
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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.