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Finding the Fourth Proportional to 701,406.40, 1,051,418.40 and 346,475.20

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Solution

The fourth proportional to 701,406.40, 1,051,418.40 and 346,475.20 is: 519,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,406.40 : 1,051,418.40 = 346,475.20 : x
  2. Step 2: Convert to fraction form
    701,406.40/1,051,418.40 = 346,475.20/x
  3. Step 3: Cross multiply
    701,406.40x = 1,051,418.40 × 346,475.20
  4. Step 4: Simplify right side
    701,406.40x = 364,290,400,423.68
  5. Step 5: Solve for x
    x = 364,290,400,423.68/701,406.40
  6. Step 6: Final answer
    x = 519,371.37

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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.