Home / 1,020,207.60-1,530,311.40-839,804.40

Finding the Fourth Proportional to 1,020,207.60, 1,530,311.40 and 839,804.40

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Solution

The fourth proportional to 1,020,207.60, 1,530,311.40 and 839,804.40 is: 1,259,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,207.60 : 1,530,311.40 = 839,804.40 : x
  2. Step 2: Convert to fraction form
    1,020,207.60/1,530,311.40 = 839,804.40/x
  3. Step 3: Cross multiply
    1,020,207.60x = 1,530,311.40 × 839,804.40
  4. Step 4: Simplify right side
    1,020,207.60x = 1,285,162,247,090.16
  5. Step 5: Solve for x
    x = 1,285,162,247,090.16/1,020,207.60
  6. Step 6: Final answer
    x = 1,259,706.60

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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.