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Finding the Fourth Proportional to 683,679.16, 943,496.28 and 377,775.32

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Solution

The fourth proportional to 683,679.16, 943,496.28 and 377,775.32 is: 521,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,679.16 : 943,496.28 = 377,775.32 : x
  2. Step 2: Convert to fraction form
    683,679.16/943,496.28 = 377,775.32/x
  3. Step 3: Cross multiply
    683,679.16x = 943,496.28 × 377,775.32
  4. Step 4: Simplify right side
    683,679.16x = 356,429,609,095.81
  5. Step 5: Solve for x
    x = 356,429,609,095.81/683,679.16
  6. Step 6: Final answer
    x = 521,340.46

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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.