Home / 853,890.70-1,280,813.98-277,510.75

Finding the Fourth Proportional to 853,890.70, 1,280,813.98 and 277,510.75

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Solution

The fourth proportional to 853,890.70, 1,280,813.98 and 277,510.75 is: 416,258.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,890.70 : 1,280,813.98 = 277,510.75 : x
  2. Step 2: Convert to fraction form
    853,890.70/1,280,813.98 = 277,510.75/x
  3. Step 3: Cross multiply
    853,890.70x = 1,280,813.98 × 277,510.75
  4. Step 4: Simplify right side
    853,890.70x = 355,439,648,200.29
  5. Step 5: Solve for x
    x = 355,439,648,200.29/853,890.70
  6. Step 6: Final answer
    x = 416,258.95

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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.