Home / 739,977.74-1,021,172.46-400,446

Finding the Fourth Proportional to 739,977.74, 1,021,172.46 and 400,446

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Solution

The fourth proportional to 739,977.74, 1,021,172.46 and 400,446 is: 552,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,977.74 : 1,021,172.46 = 400,446 : x
  2. Step 2: Convert to fraction form
    739,977.74/1,021,172.46 = 400,446/x
  3. Step 3: Cross multiply
    739,977.74x = 1,021,172.46 × 400,446
  4. Step 4: Simplify right side
    739,977.74x = 408,924,426,917.16
  5. Step 5: Solve for x
    x = 408,924,426,917.16/739,977.74
  6. Step 6: Final answer
    x = 552,617.20

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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.