Home / 1,213,774.32-1,820,661.88-415,063.28

Finding the Fourth Proportional to 1,213,774.32, 1,820,661.88 and 415,063.28

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Solution

The fourth proportional to 1,213,774.32, 1,820,661.88 and 415,063.28 is: 622,595.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,774.32 : 1,820,661.88 = 415,063.28 : x
  2. Step 2: Convert to fraction form
    1,213,774.32/1,820,661.88 = 415,063.28/x
  3. Step 3: Cross multiply
    1,213,774.32x = 1,820,661.88 × 415,063.28
  4. Step 4: Simplify right side
    1,213,774.32x = 755,689,891,683.77
  5. Step 5: Solve for x
    x = 755,689,891,683.77/1,213,774.32
  6. Step 6: Final answer
    x = 622,595.06

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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.