Home / 712,328.40-1,066,796.40-412,176.42

Finding the Fourth Proportional to 712,328.40, 1,066,796.40 and 412,176.42

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Solution

The fourth proportional to 712,328.40, 1,066,796.40 and 412,176.42 is: 617,283.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,328.40 : 1,066,796.40 = 412,176.42 : x
  2. Step 2: Convert to fraction form
    712,328.40/1,066,796.40 = 412,176.42/x
  3. Step 3: Cross multiply
    712,328.40x = 1,066,796.40 × 412,176.42
  4. Step 4: Simplify right side
    712,328.40x = 439,708,321,020.89
  5. Step 5: Solve for x
    x = 439,708,321,020.89/712,328.40
  6. Step 6: Final answer
    x = 617,283.15

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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.