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Finding the Fourth Proportional to 689,483.93, 949,321.99 and 585,899.64

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Solution

The fourth proportional to 689,483.93, 949,321.99 and 585,899.64 is: 806,701.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,483.93 : 949,321.99 = 585,899.64 : x
  2. Step 2: Convert to fraction form
    689,483.93/949,321.99 = 585,899.64/x
  3. Step 3: Cross multiply
    689,483.93x = 949,321.99 × 585,899.64
  4. Step 4: Simplify right side
    689,483.93x = 556,207,412,185.08
  5. Step 5: Solve for x
    x = 556,207,412,185.08/689,483.93
  6. Step 6: Final answer
    x = 806,701.05

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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.