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Finding the Fourth Proportional to 578,378.15, 798,048.42 and 363,393.66

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Solution

The fourth proportional to 578,378.15, 798,048.42 and 363,393.66 is: 501,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,378.15 : 798,048.42 = 363,393.66 : x
  2. Step 2: Convert to fraction form
    578,378.15/798,048.42 = 363,393.66/x
  3. Step 3: Cross multiply
    578,378.15x = 798,048.42 × 363,393.66
  4. Step 4: Simplify right side
    578,378.15x = 290,005,736,201.02
  5. Step 5: Solve for x
    x = 290,005,736,201.02/578,378.15
  6. Step 6: Final answer
    x = 501,411.98

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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.