Home / 1,009,291.70-1,512,690.92-866,130.68

Finding the Fourth Proportional to 1,009,291.70, 1,512,690.92 and 866,130.68

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Solution

The fourth proportional to 1,009,291.70, 1,512,690.92 and 866,130.68 is: 1,298,126.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,291.70 : 1,512,690.92 = 866,130.68 : x
  2. Step 2: Convert to fraction form
    1,009,291.70/1,512,690.92 = 866,130.68/x
  3. Step 3: Cross multiply
    1,009,291.70x = 1,512,690.92 × 866,130.68
  4. Step 4: Simplify right side
    1,009,291.70x = 1,310,188,014,620.50
  5. Step 5: Solve for x
    x = 1,310,188,014,620.50/1,009,291.70
  6. Step 6: Final answer
    x = 1,298,126.21

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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.