Home / 999,304.64-1,379,173.80-563,811.38

Finding the Fourth Proportional to 999,304.64, 1,379,173.80 and 563,811.38

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Solution

The fourth proportional to 999,304.64, 1,379,173.80 and 563,811.38 is: 778,134.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,304.64 : 1,379,173.80 = 563,811.38 : x
  2. Step 2: Convert to fraction form
    999,304.64/1,379,173.80 = 563,811.38/x
  3. Step 3: Cross multiply
    999,304.64x = 1,379,173.80 × 563,811.38
  4. Step 4: Simplify right side
    999,304.64x = 777,593,883,437.84
  5. Step 5: Solve for x
    x = 777,593,883,437.84/999,304.64
  6. Step 6: Final answer
    x = 778,134.97

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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.