Home / 1,877,689.78-2,591,212.49-1,018,249.78

Finding the Fourth Proportional to 1,877,689.78, 2,591,212.49 and 1,018,249.78

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Solution

The fourth proportional to 1,877,689.78, 2,591,212.49 and 1,018,249.78 is: 1,405,185.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877,689.78 : 2,591,212.49 = 1,018,249.78 : x
  2. Step 2: Convert to fraction form
    1,877,689.78/2,591,212.49 = 1,018,249.78/x
  3. Step 3: Cross multiply
    1,877,689.78x = 2,591,212.49 × 1,018,249.78
  4. Step 4: Simplify right side
    1,877,689.78x = 2,638,501,547,875.75
  5. Step 5: Solve for x
    x = 2,638,501,547,875.75/1,877,689.78
  6. Step 6: Final answer
    x = 1,405,185.02

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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.