Home / 825,386.64-1,138,549.77-518,977.41

Finding the Fourth Proportional to 825,386.64, 1,138,549.77 and 518,977.41

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Solution

The fourth proportional to 825,386.64, 1,138,549.77 and 518,977.41 is: 715,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,386.64 : 1,138,549.77 = 518,977.41 : x
  2. Step 2: Convert to fraction form
    825,386.64/1,138,549.77 = 518,977.41/x
  3. Step 3: Cross multiply
    825,386.64x = 1,138,549.77 × 518,977.41
  4. Step 4: Simplify right side
    825,386.64x = 590,881,610,790.70
  5. Step 5: Solve for x
    x = 590,881,610,790.70/825,386.64
  6. Step 6: Final answer
    x = 715,884.63

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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.