Home / 1,287,056.28-1,776,137.94-714,095.10

Finding the Fourth Proportional to 1,287,056.28, 1,776,137.94 and 714,095.10

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Solution

The fourth proportional to 1,287,056.28, 1,776,137.94 and 714,095.10 is: 985,451.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,056.28 : 1,776,137.94 = 714,095.10 : x
  2. Step 2: Convert to fraction form
    1,287,056.28/1,776,137.94 = 714,095.10/x
  3. Step 3: Cross multiply
    1,287,056.28x = 1,776,137.94 × 714,095.10
  4. Step 4: Simplify right side
    1,287,056.28x = 1,268,331,399,878.09
  5. Step 5: Solve for x
    x = 1,268,331,399,878.09/1,287,056.28
  6. Step 6: Final answer
    x = 985,451.39

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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.