Home / 806,989.19-1,113,648.42-462,838.41

Finding the Fourth Proportional to 806,989.19, 1,113,648.42 and 462,838.41

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Solution

The fourth proportional to 806,989.19, 1,113,648.42 and 462,838.41 is: 638,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,989.19 : 1,113,648.42 = 462,838.41 : x
  2. Step 2: Convert to fraction form
    806,989.19/1,113,648.42 = 462,838.41/x
  3. Step 3: Cross multiply
    806,989.19x = 1,113,648.42 × 462,838.41
  4. Step 4: Simplify right side
    806,989.19x = 515,439,264,011.81
  5. Step 5: Solve for x
    x = 515,439,264,011.81/806,989.19
  6. Step 6: Final answer
    x = 638,718.92

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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.