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Finding the Fourth Proportional to 602,514.40, 903,512.40 and 302,879.20

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Solution

The fourth proportional to 602,514.40, 903,512.40 and 302,879.20 is: 454,188.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,514.40 : 903,512.40 = 302,879.20 : x
  2. Step 2: Convert to fraction form
    602,514.40/903,512.40 = 302,879.20/x
  3. Step 3: Cross multiply
    602,514.40x = 903,512.40 × 302,879.20
  4. Step 4: Simplify right side
    602,514.40x = 273,655,112,902.08
  5. Step 5: Solve for x
    x = 273,655,112,902.08/602,514.40
  6. Step 6: Final answer
    x = 454,188.50

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Double scale
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Similar ratio
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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.