Home / 1,174,639.47-1,620,518.31-715,586.55

Finding the Fourth Proportional to 1,174,639.47, 1,620,518.31 and 715,586.55

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Solution

The fourth proportional to 1,174,639.47, 1,620,518.31 and 715,586.55 is: 987,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,639.47 : 1,620,518.31 = 715,586.55 : x
  2. Step 2: Convert to fraction form
    1,174,639.47/1,620,518.31 = 715,586.55/x
  3. Step 3: Cross multiply
    1,174,639.47x = 1,620,518.31 × 715,586.55
  4. Step 4: Simplify right side
    1,174,639.47x = 1,159,621,106,664.73
  5. Step 5: Solve for x
    x = 1,159,621,106,664.73/1,174,639.47
  6. Step 6: Final answer
    x = 987,214.49

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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.