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Finding the Fourth Proportional to 705,255.40, 973,252.41 and 403,449.40

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Solution

The fourth proportional to 705,255.40, 973,252.41 and 403,449.40 is: 556,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,255.40 : 973,252.41 = 403,449.40 : x
  2. Step 2: Convert to fraction form
    705,255.40/973,252.41 = 403,449.40/x
  3. Step 3: Cross multiply
    705,255.40x = 973,252.41 × 403,449.40
  4. Step 4: Simplify right side
    705,255.40x = 392,658,100,863.05
  5. Step 5: Solve for x
    x = 392,658,100,863.05/705,255.40
  6. Step 6: Final answer
    x = 556,760.15

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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.