Home / 1,029,880.80-1,544,821.20-987,890.40

Finding the Fourth Proportional to 1,029,880.80, 1,544,821.20 and 987,890.40

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Solution

The fourth proportional to 1,029,880.80, 1,544,821.20 and 987,890.40 is: 1,481,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,880.80 : 1,544,821.20 = 987,890.40 : x
  2. Step 2: Convert to fraction form
    1,029,880.80/1,544,821.20 = 987,890.40/x
  3. Step 3: Cross multiply
    1,029,880.80x = 1,544,821.20 × 987,890.40
  4. Step 4: Simplify right side
    1,029,880.80x = 1,526,114,033,196.48
  5. Step 5: Solve for x
    x = 1,526,114,033,196.48/1,029,880.80
  6. Step 6: Final answer
    x = 1,481,835.60

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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.