Home / 690,019.90-1,035,241.63-353,296.97

Finding the Fourth Proportional to 690,019.90, 1,035,241.63 and 353,296.97

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Solution

The fourth proportional to 690,019.90, 1,035,241.63 and 353,296.97 is: 530,053.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,019.90 : 1,035,241.63 = 353,296.97 : x
  2. Step 2: Convert to fraction form
    690,019.90/1,035,241.63 = 353,296.97/x
  3. Step 3: Cross multiply
    690,019.90x = 1,035,241.63 × 353,296.97
  4. Step 4: Simplify right side
    690,019.90x = 365,747,731,096.86
  5. Step 5: Solve for x
    x = 365,747,731,096.86/690,019.90
  6. Step 6: Final answer
    x = 530,053.89

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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.