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Finding the Fourth Proportional to 543,710.70, 750,018.15 and 505,222.74

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Solution

The fourth proportional to 543,710.70, 750,018.15 and 505,222.74 is: 696,926.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,710.70 : 750,018.15 = 505,222.74 : x
  2. Step 2: Convert to fraction form
    543,710.70/750,018.15 = 505,222.74/x
  3. Step 3: Cross multiply
    543,710.70x = 750,018.15 × 505,222.74
  4. Step 4: Simplify right side
    543,710.70x = 378,926,224,792.73
  5. Step 5: Solve for x
    x = 378,926,224,792.73/543,710.70
  6. Step 6: Final answer
    x = 696,926.19

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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.