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Finding the Fourth Proportional to 507,328.32, 700,152.48 and 280,994.88

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Solution

The fourth proportional to 507,328.32, 700,152.48 and 280,994.88 is: 387,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,328.32 : 700,152.48 = 280,994.88 : x
  2. Step 2: Convert to fraction form
    507,328.32/700,152.48 = 280,994.88/x
  3. Step 3: Cross multiply
    507,328.32x = 700,152.48 × 280,994.88
  4. Step 4: Simplify right side
    507,328.32x = 196,739,262,099.30
  5. Step 5: Solve for x
    x = 196,739,262,099.30/507,328.32
  6. Step 6: Final answer
    x = 387,794.76

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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.