Home / 1,678,652.64-2,313,773.64-1,187,989.20

Finding the Fourth Proportional to 1,678,652.64, 2,313,773.64 and 1,187,989.20

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Solution

The fourth proportional to 1,678,652.64, 2,313,773.64 and 1,187,989.20 is: 1,637,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,652.64 : 2,313,773.64 = 1,187,989.20 : x
  2. Step 2: Convert to fraction form
    1,678,652.64/2,313,773.64 = 1,187,989.20/x
  3. Step 3: Cross multiply
    1,678,652.64x = 2,313,773.64 × 1,187,989.20
  4. Step 4: Simplify right side
    1,678,652.64x = 2,748,738,095,564.69
  5. Step 5: Solve for x
    x = 2,748,738,095,564.69/1,678,652.64
  6. Step 6: Final answer
    x = 1,637,466.88

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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.