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Finding the Fourth Proportional to 578,329.32, 798,119.40 and 320,206.26

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Solution

The fourth proportional to 578,329.32, 798,119.40 and 320,206.26 is: 441,898.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,329.32 : 798,119.40 = 320,206.26 : x
  2. Step 2: Convert to fraction form
    578,329.32/798,119.40 = 320,206.26/x
  3. Step 3: Cross multiply
    578,329.32x = 798,119.40 × 320,206.26
  4. Step 4: Simplify right side
    578,329.32x = 255,562,828,107.44
  5. Step 5: Solve for x
    x = 255,562,828,107.44/578,329.32
  6. Step 6: Final answer
    x = 441,898.45

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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.