Home / 1,871,290-2,582,378.34-1,011,848.20

Finding the Fourth Proportional to 1,871,290, 2,582,378.34 and 1,011,848.20

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Solution

The fourth proportional to 1,871,290, 2,582,378.34 and 1,011,848.20 is: 1,396,349.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,290 : 2,582,378.34 = 1,011,848.20 : x
  2. Step 2: Convert to fraction form
    1,871,290/2,582,378.34 = 1,011,848.20/x
  3. Step 3: Cross multiply
    1,871,290x = 2,582,378.34 × 1,011,848.20
  4. Step 4: Simplify right side
    1,871,290x = 2,612,974,875,047.99
  5. Step 5: Solve for x
    x = 2,612,974,875,047.99/1,871,290
  6. Step 6: Final answer
    x = 1,396,349.51

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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.