Home / 887,072.72-1,224,160.88-479,174.60

Finding the Fourth Proportional to 887,072.72, 1,224,160.88 and 479,174.60

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Solution

The fourth proportional to 887,072.72, 1,224,160.88 and 479,174.60 is: 661,261.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,072.72 : 1,224,160.88 = 479,174.60 : x
  2. Step 2: Convert to fraction form
    887,072.72/1,224,160.88 = 479,174.60/x
  3. Step 3: Cross multiply
    887,072.72x = 1,224,160.88 × 479,174.60
  4. Step 4: Simplify right side
    887,072.72x = 586,586,800,009.65
  5. Step 5: Solve for x
    x = 586,586,800,009.65/887,072.72
  6. Step 6: Final answer
    x = 661,261.23

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Double scale
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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.