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Finding the Fourth Proportional to 522,128.49, 783,193.34 and 143,052.51

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Solution

The fourth proportional to 522,128.49, 783,193.34 and 143,052.51 is: 214,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,128.49 : 783,193.34 = 143,052.51 : x
  2. Step 2: Convert to fraction form
    522,128.49/783,193.34 = 143,052.51/x
  3. Step 3: Cross multiply
    522,128.49x = 783,193.34 × 143,052.51
  4. Step 4: Simplify right side
    522,128.49x = 112,037,773,459.92
  5. Step 5: Solve for x
    x = 112,037,773,459.92/522,128.49
  6. Step 6: Final answer
    x = 214,578.93

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Double scale
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Similar ratio
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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.