Home / 674,934.84-931,644.64-388,569.08

Finding the Fourth Proportional to 674,934.84, 931,644.64 and 388,569.08

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Solution

The fourth proportional to 674,934.84, 931,644.64 and 388,569.08 is: 536,360.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,934.84 : 931,644.64 = 388,569.08 : x
  2. Step 2: Convert to fraction form
    674,934.84/931,644.64 = 388,569.08/x
  3. Step 3: Cross multiply
    674,934.84x = 931,644.64 × 388,569.08
  4. Step 4: Simplify right side
    674,934.84x = 362,008,300,651.73
  5. Step 5: Solve for x
    x = 362,008,300,651.73/674,934.84
  6. Step 6: Final answer
    x = 536,360.37

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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.