Home / 1,225,485.54-1,689,982.65-817,604.01

Finding the Fourth Proportional to 1,225,485.54, 1,689,982.65 and 817,604.01

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Solution

The fourth proportional to 1,225,485.54, 1,689,982.65 and 817,604.01 is: 1,127,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,485.54 : 1,689,982.65 = 817,604.01 : x
  2. Step 2: Convert to fraction form
    1,225,485.54/1,689,982.65 = 817,604.01/x
  3. Step 3: Cross multiply
    1,225,485.54x = 1,689,982.65 × 817,604.01
  4. Step 4: Simplify right side
    1,225,485.54x = 1,381,736,591,470.43
  5. Step 5: Solve for x
    x = 1,381,736,591,470.43/1,225,485.54
  6. Step 6: Final answer
    x = 1,127,501.34

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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.