Home / 1,300,237.60-1,949,578.80-670,381.60

Finding the Fourth Proportional to 1,300,237.60, 1,949,578.80 and 670,381.60

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Solution

The fourth proportional to 1,300,237.60, 1,949,578.80 and 670,381.60 is: 1,005,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,237.60 : 1,949,578.80 = 670,381.60 : x
  2. Step 2: Convert to fraction form
    1,300,237.60/1,949,578.80 = 670,381.60/x
  3. Step 3: Cross multiply
    1,300,237.60x = 1,949,578.80 × 670,381.60
  4. Step 4: Simplify right side
    1,300,237.60x = 1,306,961,755,270.08
  5. Step 5: Solve for x
    x = 1,306,961,755,270.08/1,300,237.60
  6. Step 6: Final answer
    x = 1,005,171.48

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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.