Home / 571,920.20-789,250.61-317,271.39

Finding the Fourth Proportional to 571,920.20, 789,250.61 and 317,271.39

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Solution

The fourth proportional to 571,920.20, 789,250.61 and 317,271.39 is: 437,834.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,920.20 : 789,250.61 = 317,271.39 : x
  2. Step 2: Convert to fraction form
    571,920.20/789,250.61 = 317,271.39/x
  3. Step 3: Cross multiply
    571,920.20x = 789,250.61 × 317,271.39
  4. Step 4: Simplify right side
    571,920.20x = 250,406,638,886.23
  5. Step 5: Solve for x
    x = 250,406,638,886.23/571,920.20
  6. Step 6: Final answer
    x = 437,834.92

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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.