Home / 829,989.81-1,145,370.38-507,676.23

Finding the Fourth Proportional to 829,989.81, 1,145,370.38 and 507,676.23

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Solution

The fourth proportional to 829,989.81, 1,145,370.38 and 507,676.23 is: 700,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,989.81 : 1,145,370.38 = 507,676.23 : x
  2. Step 2: Convert to fraction form
    829,989.81/1,145,370.38 = 507,676.23/x
  3. Step 3: Cross multiply
    829,989.81x = 1,145,370.38 × 507,676.23
  4. Step 4: Simplify right side
    829,989.81x = 581,477,313,933.69
  5. Step 5: Solve for x
    x = 581,477,313,933.69/829,989.81
  6. Step 6: Final answer
    x = 700,583.68

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Double scale
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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.