Home / 1,871,221.57-2,582,287.59-1,011,781.60

Finding the Fourth Proportional to 1,871,221.57, 2,582,287.59 and 1,011,781.60

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Solution

The fourth proportional to 1,871,221.57, 2,582,287.59 and 1,011,781.60 is: 1,396,259.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,221.57 : 2,582,287.59 = 1,011,781.60 : x
  2. Step 2: Convert to fraction form
    1,871,221.57/2,582,287.59 = 1,011,781.60/x
  3. Step 3: Cross multiply
    1,871,221.57x = 2,582,287.59 × 1,011,781.60
  4. Step 4: Simplify right side
    1,871,221.57x = 2,612,711,066,808.81
  5. Step 5: Solve for x
    x = 2,612,711,066,808.81/1,871,221.57
  6. Step 6: Final answer
    x = 1,396,259.59

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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.