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Finding the Fourth Proportional to 1,326,571.56, 1,830,733.64 and 745,977.40

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Solution

The fourth proportional to 1,326,571.56, 1,830,733.64 and 745,977.40 is: 1,029,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,571.56 : 1,830,733.64 = 745,977.40 : x
  2. Step 2: Convert to fraction form
    1,326,571.56/1,830,733.64 = 745,977.40/x
  3. Step 3: Cross multiply
    1,326,571.56x = 1,830,733.64 × 745,977.40
  4. Step 4: Simplify right side
    1,326,571.56x = 1,365,685,920,859.74
  5. Step 5: Solve for x
    x = 1,365,685,920,859.74/1,326,571.56
  6. Step 6: Final answer
    x = 1,029,485.30

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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.