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Finding the Fourth Proportional to 510,453.21, 704,413.01 and 281,008.63

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Solution

The fourth proportional to 510,453.21, 704,413.01 and 281,008.63 is: 387,785.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,453.21 : 704,413.01 = 281,008.63 : x
  2. Step 2: Convert to fraction form
    510,453.21/704,413.01 = 281,008.63/x
  3. Step 3: Cross multiply
    510,453.21x = 704,413.01 × 281,008.63
  4. Step 4: Simplify right side
    510,453.21x = 197,946,134,894.28
  5. Step 5: Solve for x
    x = 197,946,134,894.28/510,453.21
  6. Step 6: Final answer
    x = 387,785.07

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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.