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Finding the Fourth Proportional to 1,310,534.85, 1,807,844.43 and 901,927.29

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Solution

The fourth proportional to 1,310,534.85, 1,807,844.43 and 901,927.29 is: 1,244,182.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,534.85 : 1,807,844.43 = 901,927.29 : x
  2. Step 2: Convert to fraction form
    1,310,534.85/1,807,844.43 = 901,927.29/x
  3. Step 3: Cross multiply
    1,310,534.85x = 1,807,844.43 × 901,927.29
  4. Step 4: Simplify right side
    1,310,534.85x = 1,630,544,227,491.49
  5. Step 5: Solve for x
    x = 1,630,544,227,491.49/1,310,534.85
  6. Step 6: Final answer
    x = 1,244,182.27

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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.