Home / 714,804.31-1,077,226.60-643,815.91

Finding the Fourth Proportional to 714,804.31, 1,077,226.60 and 643,815.91

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Solution

The fourth proportional to 714,804.31, 1,077,226.60 and 643,815.91 is: 970,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,804.31 : 1,077,226.60 = 643,815.91 : x
  2. Step 2: Convert to fraction form
    714,804.31/1,077,226.60 = 643,815.91/x
  3. Step 3: Cross multiply
    714,804.31x = 1,077,226.60 × 643,815.91
  4. Step 4: Simplify right side
    714,804.31x = 693,535,623,755.21
  5. Step 5: Solve for x
    x = 693,535,623,755.21/714,804.31
  6. Step 6: Final answer
    x = 970,245.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.