Home / 578,331.30-798,122.12-320,208.23

Finding the Fourth Proportional to 578,331.30, 798,122.12 and 320,208.23

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Solution

The fourth proportional to 578,331.30, 798,122.12 and 320,208.23 is: 441,901.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,331.30 : 798,122.12 = 320,208.23 : x
  2. Step 2: Convert to fraction form
    578,331.30/798,122.12 = 320,208.23/x
  3. Step 3: Cross multiply
    578,331.30x = 798,122.12 × 320,208.23
  4. Step 4: Simplify right side
    578,331.30x = 255,565,269,373.74
  5. Step 5: Solve for x
    x = 255,565,269,373.74/578,331.30
  6. Step 6: Final answer
    x = 441,901.16

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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.