Home / 1,370,137.20-2,055,205.80-423,603.60

Finding the Fourth Proportional to 1,370,137.20, 2,055,205.80 and 423,603.60

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Solution

The fourth proportional to 1,370,137.20, 2,055,205.80 and 423,603.60 is: 635,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,137.20 : 2,055,205.80 = 423,603.60 : x
  2. Step 2: Convert to fraction form
    1,370,137.20/2,055,205.80 = 423,603.60/x
  3. Step 3: Cross multiply
    1,370,137.20x = 2,055,205.80 × 423,603.60
  4. Step 4: Simplify right side
    1,370,137.20x = 870,592,575,620.88
  5. Step 5: Solve for x
    x = 870,592,575,620.88/1,370,137.20
  6. Step 6: Final answer
    x = 635,405.40

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1.5x scale

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.