Home / 1,173,176.80-1,759,765.20-612,138.40

Finding the Fourth Proportional to 1,173,176.80, 1,759,765.20 and 612,138.40

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Solution

The fourth proportional to 1,173,176.80, 1,759,765.20 and 612,138.40 is: 918,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,176.80 : 1,759,765.20 = 612,138.40 : x
  2. Step 2: Convert to fraction form
    1,173,176.80/1,759,765.20 = 612,138.40/x
  3. Step 3: Cross multiply
    1,173,176.80x = 1,759,765.20 × 612,138.40
  4. Step 4: Simplify right side
    1,173,176.80x = 1,077,219,853,903.68
  5. Step 5: Solve for x
    x = 1,077,219,853,903.68/1,173,176.80
  6. Step 6: Final answer
    x = 918,207.60

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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.