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Finding the Fourth Proportional to 578,321.62, 798,075.58 and 320,173.81

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Solution

The fourth proportional to 578,321.62, 798,075.58 and 320,173.81 is: 441,835.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,321.62 : 798,075.58 = 320,173.81 : x
  2. Step 2: Convert to fraction form
    578,321.62/798,075.58 = 320,173.81/x
  3. Step 3: Cross multiply
    578,321.62x = 798,075.58 × 320,173.81
  4. Step 4: Simplify right side
    578,321.62x = 255,522,899,116.56
  5. Step 5: Solve for x
    x = 255,522,899,116.56/578,321.62
  6. Step 6: Final answer
    x = 441,835.29

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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.