Home / 870,106.41-1,200,728.75-482,899.34

Finding the Fourth Proportional to 870,106.41, 1,200,728.75 and 482,899.34

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Solution

The fourth proportional to 870,106.41, 1,200,728.75 and 482,899.34 is: 666,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,106.41 : 1,200,728.75 = 482,899.34 : x
  2. Step 2: Convert to fraction form
    870,106.41/1,200,728.75 = 482,899.34/x
  3. Step 3: Cross multiply
    870,106.41x = 1,200,728.75 × 482,899.34
  4. Step 4: Simplify right side
    870,106.41x = 579,831,121,481.35
  5. Step 5: Solve for x
    x = 579,831,121,481.35/870,106.41
  6. Step 6: Final answer
    x = 666,391.05

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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.