Home / 842,834.16-1,263,660.35-310,285.89

Finding the Fourth Proportional to 842,834.16, 1,263,660.35 and 310,285.89

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Solution

The fourth proportional to 842,834.16, 1,263,660.35 and 310,285.89 is: 465,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,834.16 : 1,263,660.35 = 310,285.89 : x
  2. Step 2: Convert to fraction form
    842,834.16/1,263,660.35 = 310,285.89/x
  3. Step 3: Cross multiply
    842,834.16x = 1,263,660.35 × 310,285.89
  4. Step 4: Simplify right side
    842,834.16x = 392,095,974,806.03
  5. Step 5: Solve for x
    x = 392,095,974,806.03/842,834.16
  6. Step 6: Final answer
    x = 465,211.30

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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.