Home / 1,638,374.81-2,455,631.51-738,763.29

Finding the Fourth Proportional to 1,638,374.81, 2,455,631.51 and 738,763.29

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Solution

The fourth proportional to 1,638,374.81, 2,455,631.51 and 738,763.29 is: 1,107,274.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,374.81 : 2,455,631.51 = 738,763.29 : x
  2. Step 2: Convert to fraction form
    1,638,374.81/2,455,631.51 = 738,763.29/x
  3. Step 3: Cross multiply
    1,638,374.81x = 2,455,631.51 × 738,763.29
  4. Step 4: Simplify right side
    1,638,374.81x = 1,814,130,409,661.45
  5. Step 5: Solve for x
    x = 1,814,130,409,661.45/1,638,374.81
  6. Step 6: Final answer
    x = 1,107,274.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.