Home / 840,443.21-1,159,866.44-477,900.81

Finding the Fourth Proportional to 840,443.21, 1,159,866.44 and 477,900.81

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Solution

The fourth proportional to 840,443.21, 1,159,866.44 and 477,900.81 is: 659,534.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,443.21 : 1,159,866.44 = 477,900.81 : x
  2. Step 2: Convert to fraction form
    840,443.21/1,159,866.44 = 477,900.81/x
  3. Step 3: Cross multiply
    840,443.21x = 1,159,866.44 × 477,900.81
  4. Step 4: Simplify right side
    840,443.21x = 554,301,110,570.44
  5. Step 5: Solve for x
    x = 554,301,110,570.44/840,443.21
  6. Step 6: Final answer
    x = 659,534.28

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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.