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Finding the Fourth Proportional to 507,700.78, 700,627.02 and 281,346.28

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Solution

The fourth proportional to 507,700.78, 700,627.02 and 281,346.28 is: 388,257.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,700.78 : 700,627.02 = 281,346.28 : x
  2. Step 2: Convert to fraction form
    507,700.78/700,627.02 = 281,346.28/x
  3. Step 3: Cross multiply
    507,700.78x = 700,627.02 × 281,346.28
  4. Step 4: Simplify right side
    507,700.78x = 197,118,805,744.49
  5. Step 5: Solve for x
    x = 197,118,805,744.49/507,700.78
  6. Step 6: Final answer
    x = 388,257.84

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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.