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Finding the Fourth Proportional to 607,814.69, 838,742.31 and 335,880

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Solution

The fourth proportional to 607,814.69, 838,742.31 and 335,880 is: 463,491.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,814.69 : 838,742.31 = 335,880 : x
  2. Step 2: Convert to fraction form
    607,814.69/838,742.31 = 335,880/x
  3. Step 3: Cross multiply
    607,814.69x = 838,742.31 × 335,880
  4. Step 4: Simplify right side
    607,814.69x = 281,716,767,082.80
  5. Step 5: Solve for x
    x = 281,716,767,082.80/607,814.69
  6. Step 6: Final answer
    x = 463,491.22

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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.