Home / 987,289.40-1,480,991.48-277,372.80

Finding the Fourth Proportional to 987,289.40, 1,480,991.48 and 277,372.80

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Solution

The fourth proportional to 987,289.40, 1,480,991.48 and 277,372.80 is: 416,075.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,289.40 : 1,480,991.48 = 277,372.80 : x
  2. Step 2: Convert to fraction form
    987,289.40/1,480,991.48 = 277,372.80/x
  3. Step 3: Cross multiply
    987,289.40x = 1,480,991.48 × 277,372.80
  4. Step 4: Simplify right side
    987,289.40x = 410,786,753,583.74
  5. Step 5: Solve for x
    x = 410,786,753,583.74/987,289.40
  6. Step 6: Final answer
    x = 416,075.32

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1.5x scale

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.