Home / 809.03-1,210.58-501.05

Finding the Fourth Proportional to 809.03, 1,210.58 and 501.05

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Solution

The fourth proportional to 809.03, 1,210.58 and 501.05 is: 749.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    809.03 : 1,210.58 = 501.05 : x
  2. Step 2: Convert to fraction form
    809.03/1,210.58 = 501.05/x
  3. Step 3: Cross multiply
    809.03x = 1,210.58 × 501.05
  4. Step 4: Simplify right side
    809.03x = 606,558.60
  5. Step 5: Solve for x
    x = 606,558.60/809.03
  6. Step 6: Final answer
    x = 749.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.