Home / 931,878.87-1,397,662.60-258,028.29

Finding the Fourth Proportional to 931,878.87, 1,397,662.60 and 258,028.29

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Solution

The fourth proportional to 931,878.87, 1,397,662.60 and 258,028.29 is: 386,999.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,878.87 : 1,397,662.60 = 258,028.29 : x
  2. Step 2: Convert to fraction form
    931,878.87/1,397,662.60 = 258,028.29/x
  3. Step 3: Cross multiply
    931,878.87x = 1,397,662.60 × 258,028.29
  4. Step 4: Simplify right side
    931,878.87x = 360,636,489,384.81
  5. Step 5: Solve for x
    x = 360,636,489,384.81/931,878.87
  6. Step 6: Final answer
    x = 386,999.32

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1.5x scale

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.