Home / 820,246.70-1,230,370.05-460,047.80

Finding the Fourth Proportional to 820,246.70, 1,230,370.05 and 460,047.80

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Solution

The fourth proportional to 820,246.70, 1,230,370.05 and 460,047.80 is: 690,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,246.70 : 1,230,370.05 = 460,047.80 : x
  2. Step 2: Convert to fraction form
    820,246.70/1,230,370.05 = 460,047.80/x
  3. Step 3: Cross multiply
    820,246.70x = 1,230,370.05 × 460,047.80
  4. Step 4: Simplify right side
    820,246.70x = 566,029,034,688.39
  5. Step 5: Solve for x
    x = 566,029,034,688.39/820,246.70
  6. Step 6: Final answer
    x = 690,071.70

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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.