Home / 1,638,341.61-2,458,354.46-1,256,543.18

Finding the Fourth Proportional to 1,638,341.61, 2,458,354.46 and 1,256,543.18

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Solution

The fourth proportional to 1,638,341.61, 2,458,354.46 and 1,256,543.18 is: 1,885,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,341.61 : 2,458,354.46 = 1,256,543.18 : x
  2. Step 2: Convert to fraction form
    1,638,341.61/2,458,354.46 = 1,256,543.18/x
  3. Step 3: Cross multiply
    1,638,341.61x = 2,458,354.46 × 1,256,543.18
  4. Step 4: Simplify right side
    1,638,341.61x = 3,089,028,521,379.92
  5. Step 5: Solve for x
    x = 3,089,028,521,379.92/1,638,341.61
  6. Step 6: Final answer
    x = 1,885,460.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.