Home / 820,133.36-1,131,784.74-457,557.30

Finding the Fourth Proportional to 820,133.36, 1,131,784.74 and 457,557.30

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Solution

The fourth proportional to 820,133.36, 1,131,784.74 and 457,557.30 is: 631,429.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,133.36 : 1,131,784.74 = 457,557.30 : x
  2. Step 2: Convert to fraction form
    820,133.36/1,131,784.74 = 457,557.30/x
  3. Step 3: Cross multiply
    820,133.36x = 1,131,784.74 × 457,557.30
  4. Step 4: Simplify right side
    820,133.36x = 517,856,369,815.60
  5. Step 5: Solve for x
    x = 517,856,369,815.60/820,133.36
  6. Step 6: Final answer
    x = 631,429.47

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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.