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Finding the Fourth Proportional to 615,912.30, 918,175.17 and 606,206.10

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Solution

The fourth proportional to 615,912.30, 918,175.17 and 606,206.10 is: 903,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,912.30 : 918,175.17 = 606,206.10 : x
  2. Step 2: Convert to fraction form
    615,912.30/918,175.17 = 606,206.10/x
  3. Step 3: Cross multiply
    615,912.30x = 918,175.17 × 606,206.10
  4. Step 4: Simplify right side
    615,912.30x = 556,603,388,922.54
  5. Step 5: Solve for x
    x = 556,603,388,922.54/615,912.30
  6. Step 6: Final answer
    x = 903,705.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.