Home / 987,280.45-1,480,975.65-277,252.88

Finding the Fourth Proportional to 987,280.45, 1,480,975.65 and 277,252.88

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Solution

The fourth proportional to 987,280.45, 1,480,975.65 and 277,252.88 is: 415,894.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,280.45 : 1,480,975.65 = 277,252.88 : x
  2. Step 2: Convert to fraction form
    987,280.45/1,480,975.65 = 277,252.88/x
  3. Step 3: Cross multiply
    987,280.45x = 1,480,975.65 × 277,252.88
  4. Step 4: Simplify right side
    987,280.45x = 410,604,756,767.49
  5. Step 5: Solve for x
    x = 410,604,756,767.49/987,280.45
  6. Step 6: Final answer
    x = 415,894.75

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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.