Home / 690,398.40-1,035,699.66-353,629.56

Finding the Fourth Proportional to 690,398.40, 1,035,699.66 and 353,629.56

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Solution

The fourth proportional to 690,398.40, 1,035,699.66 and 353,629.56 is: 530,496.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,398.40 : 1,035,699.66 = 353,629.56 : x
  2. Step 2: Convert to fraction form
    690,398.40/1,035,699.66 = 353,629.56/x
  3. Step 3: Cross multiply
    690,398.40x = 1,035,699.66 × 353,629.56
  4. Step 4: Simplify right side
    690,398.40x = 366,254,015,057.95
  5. Step 5: Solve for x
    x = 366,254,015,057.95/690,398.40
  6. Step 6: Final answer
    x = 530,496.62

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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.