Home / 1,113,206.40-1,669,809.60-1,069,660.80

Finding the Fourth Proportional to 1,113,206.40, 1,669,809.60 and 1,069,660.80

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Solution

The fourth proportional to 1,113,206.40, 1,669,809.60 and 1,069,660.80 is: 1,604,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,206.40 : 1,669,809.60 = 1,069,660.80 : x
  2. Step 2: Convert to fraction form
    1,113,206.40/1,669,809.60 = 1,069,660.80/x
  3. Step 3: Cross multiply
    1,113,206.40x = 1,669,809.60 × 1,069,660.80
  4. Step 4: Simplify right side
    1,113,206.40x = 1,786,129,872,583.68
  5. Step 5: Solve for x
    x = 1,786,129,872,583.68/1,113,206.40
  6. Step 6: Final answer
    x = 1,604,491.20

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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.