Home / 1,210,265.80-1,815,398.70-311,705.80

Finding the Fourth Proportional to 1,210,265.80, 1,815,398.70 and 311,705.80

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Solution

The fourth proportional to 1,210,265.80, 1,815,398.70 and 311,705.80 is: 467,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,265.80 : 1,815,398.70 = 311,705.80 : x
  2. Step 2: Convert to fraction form
    1,210,265.80/1,815,398.70 = 311,705.80/x
  3. Step 3: Cross multiply
    1,210,265.80x = 1,815,398.70 × 311,705.80
  4. Step 4: Simplify right side
    1,210,265.80x = 565,870,304,102.46
  5. Step 5: Solve for x
    x = 565,870,304,102.46/1,210,265.80
  6. Step 6: Final answer
    x = 467,558.70

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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.