Home / 868,939.80-1,303,409.70-711,346.20

Finding the Fourth Proportional to 868,939.80, 1,303,409.70 and 711,346.20

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Solution

The fourth proportional to 868,939.80, 1,303,409.70 and 711,346.20 is: 1,067,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,939.80 : 1,303,409.70 = 711,346.20 : x
  2. Step 2: Convert to fraction form
    868,939.80/1,303,409.70 = 711,346.20/x
  3. Step 3: Cross multiply
    868,939.80x = 1,303,409.70 × 711,346.20
  4. Step 4: Simplify right side
    868,939.80x = 927,175,537,138.14
  5. Step 5: Solve for x
    x = 927,175,537,138.14/868,939.80
  6. Step 6: Final answer
    x = 1,067,019.30

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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.