Home / 912,412.20-1,279,476.60-912,412.20

Finding the Fourth Proportional to 912,412.20, 1,279,476.60 and 912,412.20

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Solution

The fourth proportional to 912,412.20, 1,279,476.60 and 912,412.20 is: 1,279,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,412.20 : 1,279,476.60 = 912,412.20 : x
  2. Step 2: Convert to fraction form
    912,412.20/1,279,476.60 = 912,412.20/x
  3. Step 3: Cross multiply
    912,412.20x = 1,279,476.60 × 912,412.20
  4. Step 4: Simplify right side
    912,412.20x = 1,167,410,059,454.52
  5. Step 5: Solve for x
    x = 1,167,410,059,454.52/912,412.20
  6. Step 6: Final answer
    x = 1,279,476.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.