Home / 470,890.69-649,824.57-256,030.75

Finding the Fourth Proportional to 470,890.69, 649,824.57 and 256,030.75

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Solution

The fourth proportional to 470,890.69, 649,824.57 and 256,030.75 is: 353,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,890.69 : 649,824.57 = 256,030.75 : x
  2. Step 2: Convert to fraction form
    470,890.69/649,824.57 = 256,030.75/x
  3. Step 3: Cross multiply
    470,890.69x = 649,824.57 × 256,030.75
  4. Step 4: Simplify right side
    470,890.69x = 166,375,070,290.09
  5. Step 5: Solve for x
    x = 166,375,070,290.09/470,890.69
  6. Step 6: Final answer
    x = 353,319.94

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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.