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Finding the Fourth Proportional to 501,488.07, 692,065.68 and 275,133.57

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Solution

The fourth proportional to 501,488.07, 692,065.68 and 275,133.57 is: 379,690.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,488.07 : 692,065.68 = 275,133.57 : x
  2. Step 2: Convert to fraction form
    501,488.07/692,065.68 = 275,133.57/x
  3. Step 3: Cross multiply
    501,488.07x = 692,065.68 × 275,133.57
  4. Step 4: Simplify right side
    501,488.07x = 190,410,501,212.88
  5. Step 5: Solve for x
    x = 190,410,501,212.88/501,488.07
  6. Step 6: Final answer
    x = 379,690.99

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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.