Home / 713,318,513.05-984,387,528.30-395,784,508.42

Finding the Fourth Proportional to 713,318,513.05, 984,387,528.30 and 395,784,508.42

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Solution

The fourth proportional to 713,318,513.05, 984,387,528.30 and 395,784,508.42 is: 546,187,049.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,318,513.05 : 984,387,528.30 = 395,784,508.42 : x
  2. Step 2: Convert to fraction form
    713,318,513.05/984,387,528.30 = 395,784,508.42/x
  3. Step 3: Cross multiply
    713,318,513.05x = 984,387,528.30 × 395,784,508.42
  4. Step 4: Simplify right side
    713,318,513.05x = 389,605,333,982,994,304
  5. Step 5: Solve for x
    x = 389,605,333,982,994,304/713,318,513.05
  6. Step 6: Final answer
    x = 546,187,049.48

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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.