Home / 530,183.76-731,631.72-288,467.28

Finding the Fourth Proportional to 530,183.76, 731,631.72 and 288,467.28

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Solution

The fourth proportional to 530,183.76, 731,631.72 and 288,467.28 is: 398,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,183.76 : 731,631.72 = 288,467.28 : x
  2. Step 2: Convert to fraction form
    530,183.76/731,631.72 = 288,467.28/x
  3. Step 3: Cross multiply
    530,183.76x = 731,631.72 × 288,467.28
  4. Step 4: Simplify right side
    530,183.76x = 211,051,812,230.12
  5. Step 5: Solve for x
    x = 211,051,812,230.12/530,183.76
  6. Step 6: Final answer
    x = 398,072.95

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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.