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Finding the Fourth Proportional to 578,373.40, 798,185.10 and 320,249.08

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Solution

The fourth proportional to 578,373.40, 798,185.10 and 320,249.08 is: 441,960.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,373.40 : 798,185.10 = 320,249.08 : x
  2. Step 2: Convert to fraction form
    578,373.40/798,185.10 = 320,249.08/x
  3. Step 3: Cross multiply
    578,373.40x = 798,185.10 × 320,249.08
  4. Step 4: Simplify right side
    578,373.40x = 255,618,043,944.71
  5. Step 5: Solve for x
    x = 255,618,043,944.71/578,373.40
  6. Step 6: Final answer
    x = 441,960.24

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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.