Home / 572,013.60-789,343.20-317,359.68

Finding the Fourth Proportional to 572,013.60, 789,343.20 and 317,359.68

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Solution

The fourth proportional to 572,013.60, 789,343.20 and 317,359.68 is: 437,936.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,013.60 : 789,343.20 = 317,359.68 : x
  2. Step 2: Convert to fraction form
    572,013.60/789,343.20 = 317,359.68/x
  3. Step 3: Cross multiply
    572,013.60x = 789,343.20 × 317,359.68
  4. Step 4: Simplify right side
    572,013.60x = 250,505,705,362.18
  5. Step 5: Solve for x
    x = 250,505,705,362.18/572,013.60
  6. Step 6: Final answer
    x = 437,936.62

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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.