Home / 1,433,676.37-1,978,473.28-780,307.07

Finding the Fourth Proportional to 1,433,676.37, 1,978,473.28 and 780,307.07

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Solution

The fourth proportional to 1,433,676.37, 1,978,473.28 and 780,307.07 is: 1,076,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,676.37 : 1,978,473.28 = 780,307.07 : x
  2. Step 2: Convert to fraction form
    1,433,676.37/1,978,473.28 = 780,307.07/x
  3. Step 3: Cross multiply
    1,433,676.37x = 1,978,473.28 × 780,307.07
  4. Step 4: Simplify right side
    1,433,676.37x = 1,543,816,691,185.51
  5. Step 5: Solve for x
    x = 1,543,816,691,185.51/1,433,676.37
  6. Step 6: Final answer
    x = 1,076,823.70

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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.