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Finding the Fourth Proportional to 616,438.22, 850,711 and 344,506.10

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Solution

The fourth proportional to 616,438.22, 850,711 and 344,506.10 is: 475,433.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,438.22 : 850,711 = 344,506.10 : x
  2. Step 2: Convert to fraction form
    616,438.22/850,711 = 344,506.10/x
  3. Step 3: Cross multiply
    616,438.22x = 850,711 × 344,506.10
  4. Step 4: Simplify right side
    616,438.22x = 293,075,128,837.10
  5. Step 5: Solve for x
    x = 293,075,128,837.10/616,438.22
  6. Step 6: Final answer
    x = 475,433.09

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1.5x scale

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.