Home / 1,917,389.80-2,877,927.90-971,828.20

Finding the Fourth Proportional to 1,917,389.80, 2,877,927.90 and 971,828.20

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Solution

The fourth proportional to 1,917,389.80, 2,877,927.90 and 971,828.20 is: 1,458,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,389.80 : 2,877,927.90 = 971,828.20 : x
  2. Step 2: Convert to fraction form
    1,917,389.80/2,877,927.90 = 971,828.20/x
  3. Step 3: Cross multiply
    1,917,389.80x = 2,877,927.90 × 971,828.20
  4. Step 4: Simplify right side
    1,917,389.80x = 2,796,851,490,786.78
  5. Step 5: Solve for x
    x = 2,796,851,490,786.78/1,917,389.80
  6. Step 6: Final answer
    x = 1,458,676.53

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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.