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Finding the Fourth Proportional to 626,522.74, 864,579.42 and 340,037.08

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Solution

The fourth proportional to 626,522.74, 864,579.42 and 340,037.08 is: 469,239.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,522.74 : 864,579.42 = 340,037.08 : x
  2. Step 2: Convert to fraction form
    626,522.74/864,579.42 = 340,037.08/x
  3. Step 3: Cross multiply
    626,522.74x = 864,579.42 × 340,037.08
  4. Step 4: Simplify right side
    626,522.74x = 293,989,061,404.89
  5. Step 5: Solve for x
    x = 293,989,061,404.89/626,522.74
  6. Step 6: Final answer
    x = 469,239.25

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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.