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Finding the Fourth Proportional to 578,378.30, 798,048.62 and 363,393.80

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Solution

The fourth proportional to 578,378.30, 798,048.62 and 363,393.80 is: 501,412.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,378.30 : 798,048.62 = 363,393.80 : x
  2. Step 2: Convert to fraction form
    578,378.30/798,048.62 = 363,393.80/x
  3. Step 3: Cross multiply
    578,378.30x = 798,048.62 × 363,393.80
  4. Step 4: Simplify right side
    578,378.30x = 290,005,920,606.56
  5. Step 5: Solve for x
    x = 290,005,920,606.56/578,378.30
  6. Step 6: Final answer
    x = 501,412.17

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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.