Home / 1,295,107.84-1,788,376.80-812,502.64

Finding the Fourth Proportional to 1,295,107.84, 1,788,376.80 and 812,502.64

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Solution

The fourth proportional to 1,295,107.84, 1,788,376.80 and 812,502.64 is: 1,121,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,107.84 : 1,788,376.80 = 812,502.64 : x
  2. Step 2: Convert to fraction form
    1,295,107.84/1,788,376.80 = 812,502.64/x
  3. Step 3: Cross multiply
    1,295,107.84x = 1,788,376.80 × 812,502.64
  4. Step 4: Simplify right side
    1,295,107.84x = 1,453,060,871,314.75
  5. Step 5: Solve for x
    x = 1,453,060,871,314.75/1,295,107.84
  6. Step 6: Final answer
    x = 1,121,961.30

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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.