Home / 1,213,438.32-1,820,391.57-465,426

Finding the Fourth Proportional to 1,213,438.32, 1,820,391.57 and 465,426

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Solution

The fourth proportional to 1,213,438.32, 1,820,391.57 and 465,426 is: 698,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,438.32 : 1,820,391.57 = 465,426 : x
  2. Step 2: Convert to fraction form
    1,213,438.32/1,820,391.57 = 465,426/x
  3. Step 3: Cross multiply
    1,213,438.32x = 1,820,391.57 × 465,426
  4. Step 4: Simplify right side
    1,213,438.32x = 847,257,566,858.82
  5. Step 5: Solve for x
    x = 847,257,566,858.82/1,213,438.32
  6. Step 6: Final answer
    x = 698,228.79

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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.