Home / 987,320.64-1,481,038.28-277,403.84

Finding the Fourth Proportional to 987,320.64, 1,481,038.28 and 277,403.84

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Solution

The fourth proportional to 987,320.64, 1,481,038.28 and 277,403.84 is: 416,121.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,320.64 : 1,481,038.28 = 277,403.84 : x
  2. Step 2: Convert to fraction form
    987,320.64/1,481,038.28 = 277,403.84/x
  3. Step 3: Cross multiply
    987,320.64x = 1,481,038.28 × 277,403.84
  4. Step 4: Simplify right side
    987,320.64x = 410,845,706,059.00
  5. Step 5: Solve for x
    x = 410,845,706,059.00/987,320.64
  6. Step 6: Final answer
    x = 416,121.86

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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.