Home / 1,113,997.29-1,537,340.70-678,435.05

Finding the Fourth Proportional to 1,113,997.29, 1,537,340.70 and 678,435.05

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Solution

The fourth proportional to 1,113,997.29, 1,537,340.70 and 678,435.05 is: 936,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,997.29 : 1,537,340.70 = 678,435.05 : x
  2. Step 2: Convert to fraction form
    1,113,997.29/1,537,340.70 = 678,435.05/x
  3. Step 3: Cross multiply
    1,113,997.29x = 1,537,340.70 × 678,435.05
  4. Step 4: Simplify right side
    1,113,997.29x = 1,042,985,814,671.54
  5. Step 5: Solve for x
    x = 1,042,985,814,671.54/1,113,997.29
  6. Step 6: Final answer
    x = 936,255.25

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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.