Home / 571,771.40-789,024.36-317,146.28

Finding the Fourth Proportional to 571,771.40, 789,024.36 and 317,146.28

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Solution

The fourth proportional to 571,771.40, 789,024.36 and 317,146.28 is: 437,650.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,771.40 : 789,024.36 = 317,146.28 : x
  2. Step 2: Convert to fraction form
    571,771.40/789,024.36 = 317,146.28/x
  3. Step 3: Cross multiply
    571,771.40x = 789,024.36 × 317,146.28
  4. Step 4: Simplify right side
    571,771.40x = 250,236,140,603.38
  5. Step 5: Solve for x
    x = 250,236,140,603.38/571,771.40
  6. Step 6: Final answer
    x = 437,650.68

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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.