Home / 1,249,878.66-1,874,915.16-408,515.46

Finding the Fourth Proportional to 1,249,878.66, 1,874,915.16 and 408,515.46

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Solution

The fourth proportional to 1,249,878.66, 1,874,915.16 and 408,515.46 is: 612,804.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,878.66 : 1,874,915.16 = 408,515.46 : x
  2. Step 2: Convert to fraction form
    1,249,878.66/1,874,915.16 = 408,515.46/x
  3. Step 3: Cross multiply
    1,249,878.66x = 1,874,915.16 × 408,515.46
  4. Step 4: Simplify right side
    1,249,878.66x = 765,931,829,048.37
  5. Step 5: Solve for x
    x = 765,931,829,048.37/1,249,878.66
  6. Step 6: Final answer
    x = 612,804.95

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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.