Home / 1,121,330.81-1,549,460.69-798,480.40

Finding the Fourth Proportional to 1,121,330.81, 1,549,460.69 and 798,480.40

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Solution

The fourth proportional to 1,121,330.81, 1,549,460.69 and 798,480.40 is: 1,103,344.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,330.81 : 1,549,460.69 = 798,480.40 : x
  2. Step 2: Convert to fraction form
    1,121,330.81/1,549,460.69 = 798,480.40/x
  3. Step 3: Cross multiply
    1,121,330.81x = 1,549,460.69 × 798,480.40
  4. Step 4: Simplify right side
    1,121,330.81x = 1,237,213,991,535.48
  5. Step 5: Solve for x
    x = 1,237,213,991,535.48/1,121,330.81
  6. Step 6: Final answer
    x = 1,103,344.33

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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.