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Finding the Fourth Proportional to 1,344,402, 1,855,313.64 and 740,828.88

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Solution

The fourth proportional to 1,344,402, 1,855,313.64 and 740,828.88 is: 1,022,365.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,402 : 1,855,313.64 = 740,828.88 : x
  2. Step 2: Convert to fraction form
    1,344,402/1,855,313.64 = 740,828.88/x
  3. Step 3: Cross multiply
    1,344,402x = 1,855,313.64 × 740,828.88
  4. Step 4: Simplify right side
    1,344,402x = 1,374,469,925,969.92
  5. Step 5: Solve for x
    x = 1,374,469,925,969.92/1,344,402
  6. Step 6: Final answer
    x = 1,022,365.28

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1.5x scale

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.