Home / 1,080,221.20-1,615,666.20-912,259.60

Finding the Fourth Proportional to 1,080,221.20, 1,615,666.20 and 912,259.60

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Solution

The fourth proportional to 1,080,221.20, 1,615,666.20 and 912,259.60 is: 1,364,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,221.20 : 1,615,666.20 = 912,259.60 : x
  2. Step 2: Convert to fraction form
    1,080,221.20/1,615,666.20 = 912,259.60/x
  3. Step 3: Cross multiply
    1,080,221.20x = 1,615,666.20 × 912,259.60
  4. Step 4: Simplify right side
    1,080,221.20x = 1,473,907,001,345.52
  5. Step 5: Solve for x
    x = 1,473,907,001,345.52/1,080,221.20
  6. Step 6: Final answer
    x = 1,364,449.25

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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.