Home / 691,358.40-1,036,864.80-264,801.60

Finding the Fourth Proportional to 691,358.40, 1,036,864.80 and 264,801.60

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Solution

The fourth proportional to 691,358.40, 1,036,864.80 and 264,801.60 is: 397,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,358.40 : 1,036,864.80 = 264,801.60 : x
  2. Step 2: Convert to fraction form
    691,358.40/1,036,864.80 = 264,801.60/x
  3. Step 3: Cross multiply
    691,358.40x = 1,036,864.80 × 264,801.60
  4. Step 4: Simplify right side
    691,358.40x = 274,563,458,023.68
  5. Step 5: Solve for x
    x = 274,563,458,023.68/691,358.40
  6. Step 6: Final answer
    x = 397,136.21

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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.