Home / 820,190.04-1,131,860.68-457,592.32

Finding the Fourth Proportional to 820,190.04, 1,131,860.68 and 457,592.32

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Solution

The fourth proportional to 820,190.04, 1,131,860.68 and 457,592.32 is: 631,476.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,190.04 : 1,131,860.68 = 457,592.32 : x
  2. Step 2: Convert to fraction form
    820,190.04/1,131,860.68 = 457,592.32/x
  3. Step 3: Cross multiply
    820,190.04x = 1,131,860.68 × 457,592.32
  4. Step 4: Simplify right side
    820,190.04x = 517,930,754,477.98
  5. Step 5: Solve for x
    x = 517,930,754,477.98/820,190.04
  6. Step 6: Final answer
    x = 631,476.52

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Half scale
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Double scale
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Similar ratio
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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.