Home / 1,457,783.28-2,011,743.84-813,186.72

Finding the Fourth Proportional to 1,457,783.28, 2,011,743.84 and 813,186.72

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Solution

The fourth proportional to 1,457,783.28, 2,011,743.84 and 813,186.72 is: 1,122,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,783.28 : 2,011,743.84 = 813,186.72 : x
  2. Step 2: Convert to fraction form
    1,457,783.28/2,011,743.84 = 813,186.72/x
  3. Step 3: Cross multiply
    1,457,783.28x = 2,011,743.84 × 813,186.72
  4. Step 4: Simplify right side
    1,457,783.28x = 1,635,923,374,729.81
  5. Step 5: Solve for x
    x = 1,635,923,374,729.81/1,457,783.28
  6. Step 6: Final answer
    x = 1,122,199.30

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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.