Home / 1,126,546.40-1,689,790.08-378,592.16

Finding the Fourth Proportional to 1,126,546.40, 1,689,790.08 and 378,592.16

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Solution

The fourth proportional to 1,126,546.40, 1,689,790.08 and 378,592.16 is: 567,878.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,546.40 : 1,689,790.08 = 378,592.16 : x
  2. Step 2: Convert to fraction form
    1,126,546.40/1,689,790.08 = 378,592.16/x
  3. Step 3: Cross multiply
    1,126,546.40x = 1,689,790.08 × 378,592.16
  4. Step 4: Simplify right side
    1,126,546.40x = 639,741,276,333.77
  5. Step 5: Solve for x
    x = 639,741,276,333.77/1,126,546.40
  6. Step 6: Final answer
    x = 567,878.32

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Double scale
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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.