Home / 572,056.75-789,438.45-317,409.76

Finding the Fourth Proportional to 572,056.75, 789,438.45 and 317,409.76

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Solution

The fourth proportional to 572,056.75, 789,438.45 and 317,409.76 is: 438,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,056.75 : 789,438.45 = 317,409.76 : x
  2. Step 2: Convert to fraction form
    572,056.75/789,438.45 = 317,409.76/x
  3. Step 3: Cross multiply
    572,056.75x = 789,438.45 × 317,409.76
  4. Step 4: Simplify right side
    572,056.75x = 250,575,468,949.27
  5. Step 5: Solve for x
    x = 250,575,468,949.27/572,056.75
  6. Step 6: Final answer
    x = 438,025.54

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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.