Home / 1,249,868.90-1,874,900.55-408,505.70

Finding the Fourth Proportional to 1,249,868.90, 1,874,900.55 and 408,505.70

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Solution

The fourth proportional to 1,249,868.90, 1,874,900.55 and 408,505.70 is: 612,790.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,868.90 : 1,874,900.55 = 408,505.70 : x
  2. Step 2: Convert to fraction form
    1,249,868.90/1,874,900.55 = 408,505.70/x
  3. Step 3: Cross multiply
    1,249,868.90x = 1,874,900.55 × 408,505.70
  4. Step 4: Simplify right side
    1,249,868.90x = 765,907,552,233.63
  5. Step 5: Solve for x
    x = 765,907,552,233.63/1,249,868.90
  6. Step 6: Final answer
    x = 612,790.31

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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.