Home / 756,345.21-1,043,808.03-462,120.90

Finding the Fourth Proportional to 756,345.21, 1,043,808.03 and 462,120.90

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Solution

The fourth proportional to 756,345.21, 1,043,808.03 and 462,120.90 is: 637,758.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,345.21 : 1,043,808.03 = 462,120.90 : x
  2. Step 2: Convert to fraction form
    756,345.21/1,043,808.03 = 462,120.90/x
  3. Step 3: Cross multiply
    756,345.21x = 1,043,808.03 × 462,120.90
  4. Step 4: Simplify right side
    756,345.21x = 482,365,503,940.22
  5. Step 5: Solve for x
    x = 482,365,503,940.22/756,345.21
  6. Step 6: Final answer
    x = 637,758.39

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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.