Home / 1,123,311.80-1,684,967.70-1,116,313.40

Finding the Fourth Proportional to 1,123,311.80, 1,684,967.70 and 1,116,313.40

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Solution

The fourth proportional to 1,123,311.80, 1,684,967.70 and 1,116,313.40 is: 1,674,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,311.80 : 1,684,967.70 = 1,116,313.40 : x
  2. Step 2: Convert to fraction form
    1,123,311.80/1,684,967.70 = 1,116,313.40/x
  3. Step 3: Cross multiply
    1,123,311.80x = 1,684,967.70 × 1,116,313.40
  4. Step 4: Simplify right side
    1,123,311.80x = 1,880,952,022,077.18
  5. Step 5: Solve for x
    x = 1,880,952,022,077.18/1,123,311.80
  6. Step 6: Final answer
    x = 1,674,470.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.