Home / 1,018,769.56-1,406,333.01-687,697.72

Finding the Fourth Proportional to 1,018,769.56, 1,406,333.01 and 687,697.72

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Solution

The fourth proportional to 1,018,769.56, 1,406,333.01 and 687,697.72 is: 949,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,769.56 : 1,406,333.01 = 687,697.72 : x
  2. Step 2: Convert to fraction form
    1,018,769.56/1,406,333.01 = 687,697.72/x
  3. Step 3: Cross multiply
    1,018,769.56x = 1,406,333.01 × 687,697.72
  4. Step 4: Simplify right side
    1,018,769.56x = 967,132,004,537.74
  5. Step 5: Solve for x
    x = 967,132,004,537.74/1,018,769.56
  6. Step 6: Final answer
    x = 949,313.80

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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.