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Finding the Fourth Proportional to 507,549, 700,440.57 and 281,194.50

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Solution

The fourth proportional to 507,549, 700,440.57 and 281,194.50 is: 388,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,549 : 700,440.57 = 281,194.50 : x
  2. Step 2: Convert to fraction form
    507,549/700,440.57 = 281,194.50/x
  3. Step 3: Cross multiply
    507,549x = 700,440.57 × 281,194.50
  4. Step 4: Simplify right side
    507,549x = 196,960,035,860.87
  5. Step 5: Solve for x
    x = 196,960,035,860.87/507,549
  6. Step 6: Final answer
    x = 388,061.12

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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.