Home / 1,100,621.80-1,650,932.70-1,020,905.65

Finding the Fourth Proportional to 1,100,621.80, 1,650,932.70 and 1,020,905.65

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Solution

The fourth proportional to 1,100,621.80, 1,650,932.70 and 1,020,905.65 is: 1,531,358.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,621.80 : 1,650,932.70 = 1,020,905.65 : x
  2. Step 2: Convert to fraction form
    1,100,621.80/1,650,932.70 = 1,020,905.65/x
  3. Step 3: Cross multiply
    1,100,621.80x = 1,650,932.70 × 1,020,905.65
  4. Step 4: Simplify right side
    1,100,621.80x = 1,685,446,521,199.76
  5. Step 5: Solve for x
    x = 1,685,446,521,199.76/1,100,621.80
  6. Step 6: Final answer
    x = 1,531,358.48

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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.