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Finding the Fourth Proportional to 507,980.12, 701,013.54 and 281,625.62

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Solution

The fourth proportional to 507,980.12, 701,013.54 and 281,625.62 is: 388,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,980.12 : 701,013.54 = 281,625.62 : x
  2. Step 2: Convert to fraction form
    507,980.12/701,013.54 = 281,625.62/x
  3. Step 3: Cross multiply
    507,980.12x = 701,013.54 × 281,625.62
  4. Step 4: Simplify right side
    507,980.12x = 197,423,372,830.90
  5. Step 5: Solve for x
    x = 197,423,372,830.90/507,980.12
  6. Step 6: Final answer
    x = 388,643.90

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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.