Home / 864,040.47-1,295,946.91-256,815.82

Finding the Fourth Proportional to 864,040.47, 1,295,946.91 and 256,815.82

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Solution

The fourth proportional to 864,040.47, 1,295,946.91 and 256,815.82 is: 385,189.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,040.47 : 1,295,946.91 = 256,815.82 : x
  2. Step 2: Convert to fraction form
    864,040.47/1,295,946.91 = 256,815.82/x
  3. Step 3: Cross multiply
    864,040.47x = 1,295,946.91 × 256,815.82
  4. Step 4: Simplify right side
    864,040.47x = 332,819,668,368.12
  5. Step 5: Solve for x
    x = 332,819,668,368.12/864,040.47
  6. Step 6: Final answer
    x = 385,189.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.