Home / 1,121,444.70-1,682,555.85-490,811.10

Finding the Fourth Proportional to 1,121,444.70, 1,682,555.85 and 490,811.10

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Solution

The fourth proportional to 1,121,444.70, 1,682,555.85 and 490,811.10 is: 736,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,444.70 : 1,682,555.85 = 490,811.10 : x
  2. Step 2: Convert to fraction form
    1,121,444.70/1,682,555.85 = 490,811.10/x
  3. Step 3: Cross multiply
    1,121,444.70x = 1,682,555.85 × 490,811.10
  4. Step 4: Simplify right side
    1,121,444.70x = 825,817,087,549.94
  5. Step 5: Solve for x
    x = 825,817,087,549.94/1,121,444.70
  6. Step 6: Final answer
    x = 736,386.81

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Double scale
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1.5x scale

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.