Home / 823,931.20-1,235,896.80-507,361.60

Finding the Fourth Proportional to 823,931.20, 1,235,896.80 and 507,361.60

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Solution

The fourth proportional to 823,931.20, 1,235,896.80 and 507,361.60 is: 761,042.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,931.20 : 1,235,896.80 = 507,361.60 : x
  2. Step 2: Convert to fraction form
    823,931.20/1,235,896.80 = 507,361.60/x
  3. Step 3: Cross multiply
    823,931.20x = 1,235,896.80 × 507,361.60
  4. Step 4: Simplify right side
    823,931.20x = 627,046,577,882.88
  5. Step 5: Solve for x
    x = 627,046,577,882.88/823,931.20
  6. Step 6: Final answer
    x = 761,042.40

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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.