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Finding the Fourth Proportional to 501,305.69, 691,792.38 and 283,510.56

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Solution

The fourth proportional to 501,305.69, 691,792.38 and 283,510.56 is: 391,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,305.69 : 691,792.38 = 283,510.56 : x
  2. Step 2: Convert to fraction form
    501,305.69/691,792.38 = 283,510.56/x
  3. Step 3: Cross multiply
    501,305.69x = 691,792.38 × 283,510.56
  4. Step 4: Simplify right side
    501,305.69x = 196,130,447,651.75
  5. Step 5: Solve for x
    x = 196,130,447,651.75/501,305.69
  6. Step 6: Final answer
    x = 391,239.22

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1.5x scale

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.