Home / 572,149.55-789,603.36-317,500.74

Finding the Fourth Proportional to 572,149.55, 789,603.36 and 317,500.74

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Solution

The fourth proportional to 572,149.55, 789,603.36 and 317,500.74 is: 438,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,149.55 : 789,603.36 = 317,500.74 : x
  2. Step 2: Convert to fraction form
    572,149.55/789,603.36 = 317,500.74/x
  3. Step 3: Cross multiply
    572,149.55x = 789,603.36 × 317,500.74
  4. Step 4: Simplify right side
    572,149.55x = 250,699,651,106.49
  5. Step 5: Solve for x
    x = 250,699,651,106.49/572,149.55
  6. Step 6: Final answer
    x = 438,171.55

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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.