Home / 1,137,788.51-1,570,143.33-628,490.88

Finding the Fourth Proportional to 1,137,788.51, 1,570,143.33 and 628,490.88

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Solution

The fourth proportional to 1,137,788.51, 1,570,143.33 and 628,490.88 is: 867,314.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,788.51 : 1,570,143.33 = 628,490.88 : x
  2. Step 2: Convert to fraction form
    1,137,788.51/1,570,143.33 = 628,490.88/x
  3. Step 3: Cross multiply
    1,137,788.51x = 1,570,143.33 × 628,490.88
  4. Step 4: Simplify right side
    1,137,788.51x = 986,820,763,197.83
  5. Step 5: Solve for x
    x = 986,820,763,197.83/1,137,788.51
  6. Step 6: Final answer
    x = 867,314.76

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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.