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Finding the Fourth Proportional to 702,841.73, 1,054,128.53 and 342,651.03

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Solution

The fourth proportional to 702,841.73, 1,054,128.53 and 342,651.03 is: 513,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,841.73 : 1,054,128.53 = 342,651.03 : x
  2. Step 2: Convert to fraction form
    702,841.73/1,054,128.53 = 342,651.03/x
  3. Step 3: Cross multiply
    702,841.73x = 1,054,128.53 × 342,651.03
  4. Step 4: Simplify right side
    702,841.73x = 361,198,232,354.74
  5. Step 5: Solve for x
    x = 361,198,232,354.74/702,841.73
  6. Step 6: Final answer
    x = 513,911.19

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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.