Home / 1,051,128.38-1,570,932.44-767,416.46

Finding the Fourth Proportional to 1,051,128.38, 1,570,932.44 and 767,416.46

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Solution

The fourth proportional to 1,051,128.38, 1,570,932.44 and 767,416.46 is: 1,146,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,128.38 : 1,570,932.44 = 767,416.46 : x
  2. Step 2: Convert to fraction form
    1,051,128.38/1,570,932.44 = 767,416.46/x
  3. Step 3: Cross multiply
    1,051,128.38x = 1,570,932.44 × 767,416.46
  4. Step 4: Simplify right side
    1,051,128.38x = 1,205,559,412,003.96
  5. Step 5: Solve for x
    x = 1,205,559,412,003.96/1,051,128.38
  6. Step 6: Final answer
    x = 1,146,919.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.