Home / 691,262.40-1,036,893.60-407,827.20

Finding the Fourth Proportional to 691,262.40, 1,036,893.60 and 407,827.20

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Solution

The fourth proportional to 691,262.40, 1,036,893.60 and 407,827.20 is: 611,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,262.40 : 1,036,893.60 = 407,827.20 : x
  2. Step 2: Convert to fraction form
    691,262.40/1,036,893.60 = 407,827.20/x
  3. Step 3: Cross multiply
    691,262.40x = 1,036,893.60 × 407,827.20
  4. Step 4: Simplify right side
    691,262.40x = 422,873,413,585.92
  5. Step 5: Solve for x
    x = 422,873,413,585.92/691,262.40
  6. Step 6: Final answer
    x = 611,740.80

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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.