Home / 1,098,968.37-1,517,316.87-686,134.32

Finding the Fourth Proportional to 1,098,968.37, 1,517,316.87 and 686,134.32

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Solution

The fourth proportional to 1,098,968.37, 1,517,316.87 and 686,134.32 is: 947,327.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,968.37 : 1,517,316.87 = 686,134.32 : x
  2. Step 2: Convert to fraction form
    1,098,968.37/1,517,316.87 = 686,134.32/x
  3. Step 3: Cross multiply
    1,098,968.37x = 1,517,316.87 × 686,134.32
  4. Step 4: Simplify right side
    1,098,968.37x = 1,041,083,178,821.98
  5. Step 5: Solve for x
    x = 1,041,083,178,821.98/1,098,968.37
  6. Step 6: Final answer
    x = 947,327.70

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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.