Home / 1,121,335.80-1,549,467.60-798,485.40

Finding the Fourth Proportional to 1,121,335.80, 1,549,467.60 and 798,485.40

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Solution

The fourth proportional to 1,121,335.80, 1,549,467.60 and 798,485.40 is: 1,103,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,335.80 : 1,549,467.60 = 798,485.40 : x
  2. Step 2: Convert to fraction form
    1,121,335.80/1,549,467.60 = 798,485.40/x
  3. Step 3: Cross multiply
    1,121,335.80x = 1,549,467.60 × 798,485.40
  4. Step 4: Simplify right side
    1,121,335.80x = 1,237,227,256,373.04
  5. Step 5: Solve for x
    x = 1,237,227,256,373.04/1,121,335.80
  6. Step 6: Final answer
    x = 1,103,351.25

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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.