Home / 870,131.78-1,200,772.75-482,950.54

Finding the Fourth Proportional to 870,131.78, 1,200,772.75 and 482,950.54

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Solution

The fourth proportional to 870,131.78, 1,200,772.75 and 482,950.54 is: 666,466.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,131.78 : 1,200,772.75 = 482,950.54 : x
  2. Step 2: Convert to fraction form
    870,131.78/1,200,772.75 = 482,950.54/x
  3. Step 3: Cross multiply
    870,131.78x = 1,200,772.75 × 482,950.54
  4. Step 4: Simplify right side
    870,131.78x = 579,913,847,200.76
  5. Step 5: Solve for x
    x = 579,913,847,200.76/870,131.78
  6. Step 6: Final answer
    x = 666,466.69

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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.