Home / 820,328.40-1,132,290.75-476,241.62

Finding the Fourth Proportional to 820,328.40, 1,132,290.75 and 476,241.62

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Solution

The fourth proportional to 820,328.40, 1,132,290.75 and 476,241.62 is: 657,351.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,328.40 : 1,132,290.75 = 476,241.62 : x
  2. Step 2: Convert to fraction form
    820,328.40/1,132,290.75 = 476,241.62/x
  3. Step 3: Cross multiply
    820,328.40x = 1,132,290.75 × 476,241.62
  4. Step 4: Simplify right side
    820,328.40x = 539,243,975,429.56
  5. Step 5: Solve for x
    x = 539,243,975,429.56/820,328.40
  6. Step 6: Final answer
    x = 657,351.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.