Home / 820,133.23-1,131,784.57-457,557.15

Finding the Fourth Proportional to 820,133.23, 1,131,784.57 and 457,557.15

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Solution

The fourth proportional to 820,133.23, 1,131,784.57 and 457,557.15 is: 631,429.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,133.23 : 1,131,784.57 = 457,557.15 : x
  2. Step 2: Convert to fraction form
    820,133.23/1,131,784.57 = 457,557.15/x
  3. Step 3: Cross multiply
    820,133.23x = 1,131,784.57 × 457,557.15
  4. Step 4: Simplify right side
    820,133.23x = 517,856,118,289.82
  5. Step 5: Solve for x
    x = 517,856,118,289.82/820,133.23
  6. Step 6: Final answer
    x = 631,429.26

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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.