Home / 1,621,816.47-2,430,362.73-779,384.07

Finding the Fourth Proportional to 1,621,816.47, 2,430,362.73 and 779,384.07

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Solution

The fourth proportional to 1,621,816.47, 2,430,362.73 and 779,384.07 is: 1,167,941.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,816.47 : 2,430,362.73 = 779,384.07 : x
  2. Step 2: Convert to fraction form
    1,621,816.47/2,430,362.73 = 779,384.07/x
  3. Step 3: Cross multiply
    1,621,816.47x = 2,430,362.73 × 779,384.07
  4. Step 4: Simplify right side
    1,621,816.47x = 1,894,185,996,083.71
  5. Step 5: Solve for x
    x = 1,894,185,996,083.71/1,621,816.47
  6. Step 6: Final answer
    x = 1,167,941.03

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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.