Home / 1,102,218.10-1,521,009.22-612,219.39

Finding the Fourth Proportional to 1,102,218.10, 1,521,009.22 and 612,219.39

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Solution

The fourth proportional to 1,102,218.10, 1,521,009.22 and 612,219.39 is: 844,834.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,218.10 : 1,521,009.22 = 612,219.39 : x
  2. Step 2: Convert to fraction form
    1,102,218.10/1,521,009.22 = 612,219.39/x
  3. Step 3: Cross multiply
    1,102,218.10x = 1,521,009.22 × 612,219.39
  4. Step 4: Simplify right side
    1,102,218.10x = 931,191,336,852.78
  5. Step 5: Solve for x
    x = 931,191,336,852.78/1,102,218.10
  6. Step 6: Final answer
    x = 844,834.01

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Half scale
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Double scale
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1.5x scale

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.