Home / 820,648.14-1,132,683.39-481,225.74

Finding the Fourth Proportional to 820,648.14, 1,132,683.39 and 481,225.74

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Solution

The fourth proportional to 820,648.14, 1,132,683.39 and 481,225.74 is: 664,202.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,648.14 : 1,132,683.39 = 481,225.74 : x
  2. Step 2: Convert to fraction form
    820,648.14/1,132,683.39 = 481,225.74/x
  3. Step 3: Cross multiply
    820,648.14x = 1,132,683.39 × 481,225.74
  4. Step 4: Simplify right side
    820,648.14x = 545,076,402,538.46
  5. Step 5: Solve for x
    x = 545,076,402,538.46/820,648.14
  6. Step 6: Final answer
    x = 664,202.32

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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.