Home / 889,467.20-1,247,742.40-889,467.20

Finding the Fourth Proportional to 889,467.20, 1,247,742.40 and 889,467.20

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Solution

The fourth proportional to 889,467.20, 1,247,742.40 and 889,467.20 is: 1,247,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,467.20 : 1,247,742.40 = 889,467.20 : x
  2. Step 2: Convert to fraction form
    889,467.20/1,247,742.40 = 889,467.20/x
  3. Step 3: Cross multiply
    889,467.20x = 1,247,742.40 × 889,467.20
  4. Step 4: Simplify right side
    889,467.20x = 1,109,825,938,849.28
  5. Step 5: Solve for x
    x = 1,109,825,938,849.28/889,467.20
  6. Step 6: Final answer
    x = 1,247,742.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.