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Finding the Fourth Proportional to 1,357,413, 1,873,395.18 and 784,457.88

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Solution

The fourth proportional to 1,357,413, 1,873,395.18 and 784,457.88 is: 1,082,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357,413 : 1,873,395.18 = 784,457.88 : x
  2. Step 2: Convert to fraction form
    1,357,413/1,873,395.18 = 784,457.88/x
  3. Step 3: Cross multiply
    1,357,413x = 1,873,395.18 × 784,457.88
  4. Step 4: Simplify right side
    1,357,413x = 1,469,599,611,305.02
  5. Step 5: Solve for x
    x = 1,469,599,611,305.02/1,357,413
  6. Step 6: Final answer
    x = 1,082,647.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.