Home / 1,137,948.48-1,570,389.12-628,620.48

Finding the Fourth Proportional to 1,137,948.48, 1,570,389.12 and 628,620.48

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Solution

The fourth proportional to 1,137,948.48, 1,570,389.12 and 628,620.48 is: 867,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,948.48 : 1,570,389.12 = 628,620.48 : x
  2. Step 2: Convert to fraction form
    1,137,948.48/1,570,389.12 = 628,620.48/x
  3. Step 3: Cross multiply
    1,137,948.48x = 1,570,389.12 × 628,620.48
  4. Step 4: Simplify right side
    1,137,948.48x = 987,178,762,401.18
  5. Step 5: Solve for x
    x = 987,178,762,401.18/1,137,948.48
  6. Step 6: Final answer
    x = 867,507.43

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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.