Home / 862,311.34-1,294,020.42-578,322.46

Finding the Fourth Proportional to 862,311.34, 1,294,020.42 and 578,322.46

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Solution

The fourth proportional to 862,311.34, 1,294,020.42 and 578,322.46 is: 867,854.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,311.34 : 1,294,020.42 = 578,322.46 : x
  2. Step 2: Convert to fraction form
    862,311.34/1,294,020.42 = 578,322.46/x
  3. Step 3: Cross multiply
    862,311.34x = 1,294,020.42 × 578,322.46
  4. Step 4: Simplify right side
    862,311.34x = 748,361,072,584.63
  5. Step 5: Solve for x
    x = 748,361,072,584.63/862,311.34
  6. Step 6: Final answer
    x = 867,854.84

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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.