Home / 1,864,913.76-2,573,969.40-1,219,136.40

Finding the Fourth Proportional to 1,864,913.76, 2,573,969.40 and 1,219,136.40

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Solution

The fourth proportional to 1,864,913.76, 2,573,969.40 and 1,219,136.40 is: 1,682,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864,913.76 : 2,573,969.40 = 1,219,136.40 : x
  2. Step 2: Convert to fraction form
    1,864,913.76/2,573,969.40 = 1,219,136.40/x
  3. Step 3: Cross multiply
    1,864,913.76x = 2,573,969.40 × 1,219,136.40
  4. Step 4: Simplify right side
    1,864,913.76x = 3,138,019,788,026.16
  5. Step 5: Solve for x
    x = 3,138,019,788,026.16/1,864,913.76
  6. Step 6: Final answer
    x = 1,682,662.15

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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.