Home / 1,249,869.65-1,874,901.67-408,506.45

Finding the Fourth Proportional to 1,249,869.65, 1,874,901.67 and 408,506.45

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Solution

The fourth proportional to 1,249,869.65, 1,874,901.67 and 408,506.45 is: 612,791.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,869.65 : 1,874,901.67 = 408,506.45 : x
  2. Step 2: Convert to fraction form
    1,249,869.65/1,874,901.67 = 408,506.45/x
  3. Step 3: Cross multiply
    1,249,869.65x = 1,874,901.67 × 408,506.45
  4. Step 4: Simplify right side
    1,249,869.65x = 765,909,414,915.00
  5. Step 5: Solve for x
    x = 765,909,414,915.00/1,249,869.65
  6. Step 6: Final answer
    x = 612,791.44

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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.