Home / 572,165.48-789,615.30-317,518.76

Finding the Fourth Proportional to 572,165.48, 789,615.30 and 317,518.76

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Solution

The fourth proportional to 572,165.48, 789,615.30 and 317,518.76 is: 438,190.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,165.48 : 789,615.30 = 317,518.76 : x
  2. Step 2: Convert to fraction form
    572,165.48/789,615.30 = 317,518.76/x
  3. Step 3: Cross multiply
    572,165.48x = 789,615.30 × 317,518.76
  4. Step 4: Simplify right side
    572,165.48x = 250,717,670,933.03
  5. Step 5: Solve for x
    x = 250,717,670,933.03/572,165.48
  6. Step 6: Final answer
    x = 438,190.84

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Double scale
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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.