Home / 1,405,806.57-2,108,735.78-507,315.69

Finding the Fourth Proportional to 1,405,806.57, 2,108,735.78 and 507,315.69

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Solution

The fourth proportional to 1,405,806.57, 2,108,735.78 and 507,315.69 is: 760,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,806.57 : 2,108,735.78 = 507,315.69 : x
  2. Step 2: Convert to fraction form
    1,405,806.57/2,108,735.78 = 507,315.69/x
  3. Step 3: Cross multiply
    1,405,806.57x = 2,108,735.78 × 507,315.69
  4. Step 4: Simplify right side
    1,405,806.57x = 1,069,794,744,721.81
  5. Step 5: Solve for x
    x = 1,069,794,744,721.81/1,405,806.57
  6. Step 6: Final answer
    x = 760,982.89

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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.