Home / 1,078,228.20-1,617,342.30-889,271.40

Finding the Fourth Proportional to 1,078,228.20, 1,617,342.30 and 889,271.40

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Solution

The fourth proportional to 1,078,228.20, 1,617,342.30 and 889,271.40 is: 1,333,907.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,228.20 : 1,617,342.30 = 889,271.40 : x
  2. Step 2: Convert to fraction form
    1,078,228.20/1,617,342.30 = 889,271.40/x
  3. Step 3: Cross multiply
    1,078,228.20x = 1,617,342.30 × 889,271.40
  4. Step 4: Simplify right side
    1,078,228.20x = 1,438,256,251,400.22
  5. Step 5: Solve for x
    x = 1,438,256,251,400.22/1,078,228.20
  6. Step 6: Final answer
    x = 1,333,907.10

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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.