Home / 691,391.61-1,036,337.76-353,969.33

Finding the Fourth Proportional to 691,391.61, 1,036,337.76 and 353,969.33

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Solution

The fourth proportional to 691,391.61, 1,036,337.76 and 353,969.33 is: 530,570.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,391.61 : 1,036,337.76 = 353,969.33 : x
  2. Step 2: Convert to fraction form
    691,391.61/1,036,337.76 = 353,969.33/x
  3. Step 3: Cross multiply
    691,391.61x = 1,036,337.76 × 353,969.33
  4. Step 4: Simplify right side
    691,391.61x = 366,831,777,379.21
  5. Step 5: Solve for x
    x = 366,831,777,379.21/691,391.61
  6. Step 6: Final answer
    x = 530,570.19

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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.