Home / 1,113,996.41-1,537,339.49-678,434.18

Finding the Fourth Proportional to 1,113,996.41, 1,537,339.49 and 678,434.18

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Solution

The fourth proportional to 1,113,996.41, 1,537,339.49 and 678,434.18 is: 936,254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,996.41 : 1,537,339.49 = 678,434.18 : x
  2. Step 2: Convert to fraction form
    1,113,996.41/1,537,339.49 = 678,434.18/x
  3. Step 3: Cross multiply
    1,113,996.41x = 1,537,339.49 × 678,434.18
  4. Step 4: Simplify right side
    1,113,996.41x = 1,042,983,650,289.16
  5. Step 5: Solve for x
    x = 1,042,983,650,289.16/1,113,996.41
  6. Step 6: Final answer
    x = 936,254.05

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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.