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Finding the Fourth Proportional to 501,038.53, 691,476.69 and 274,727.77

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Solution

The fourth proportional to 501,038.53, 691,476.69 and 274,727.77 is: 379,148.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,038.53 : 691,476.69 = 274,727.77 : x
  2. Step 2: Convert to fraction form
    501,038.53/691,476.69 = 274,727.77/x
  3. Step 3: Cross multiply
    501,038.53x = 691,476.69 × 274,727.77
  4. Step 4: Simplify right side
    501,038.53x = 189,967,849,050.68
  5. Step 5: Solve for x
    x = 189,967,849,050.68/501,038.53
  6. Step 6: Final answer
    x = 379,148.18

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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.