Home / 730,443.89-1,007,994.97-399,285.11

Finding the Fourth Proportional to 730,443.89, 1,007,994.97 and 399,285.11

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Solution

The fourth proportional to 730,443.89, 1,007,994.97 and 399,285.11 is: 551,003.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,443.89 : 1,007,994.97 = 399,285.11 : x
  2. Step 2: Convert to fraction form
    730,443.89/1,007,994.97 = 399,285.11/x
  3. Step 3: Cross multiply
    730,443.89x = 1,007,994.97 × 399,285.11
  4. Step 4: Simplify right side
    730,443.89x = 402,477,380,681.04
  5. Step 5: Solve for x
    x = 402,477,380,681.04/730,443.89
  6. Step 6: Final answer
    x = 551,003.83

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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.