Home / 748,051.20-1,122,076.80-298,841.40

Finding the Fourth Proportional to 748,051.20, 1,122,076.80 and 298,841.40

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Solution

The fourth proportional to 748,051.20, 1,122,076.80 and 298,841.40 is: 448,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,051.20 : 1,122,076.80 = 298,841.40 : x
  2. Step 2: Convert to fraction form
    748,051.20/1,122,076.80 = 298,841.40/x
  3. Step 3: Cross multiply
    748,051.20x = 1,122,076.80 × 298,841.40
  4. Step 4: Simplify right side
    748,051.20x = 335,323,001,819.52
  5. Step 5: Solve for x
    x = 335,323,001,819.52/748,051.20
  6. Step 6: Final answer
    x = 448,262.10

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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.