Home / 931,276.80-1,284,710.40-629,452.80

Finding the Fourth Proportional to 931,276.80, 1,284,710.40 and 629,452.80

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Solution

The fourth proportional to 931,276.80, 1,284,710.40 and 629,452.80 is: 868,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,276.80 : 1,284,710.40 = 629,452.80 : x
  2. Step 2: Convert to fraction form
    931,276.80/1,284,710.40 = 629,452.80/x
  3. Step 3: Cross multiply
    931,276.80x = 1,284,710.40 × 629,452.80
  4. Step 4: Simplify right side
    931,276.80x = 808,664,558,469.12
  5. Step 5: Solve for x
    x = 808,664,558,469.12/931,276.80
  6. Step 6: Final answer
    x = 868,339.64

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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.