Home / 727,329.40-1,090,994.10-412,401.40

Finding the Fourth Proportional to 727,329.40, 1,090,994.10 and 412,401.40

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Solution

The fourth proportional to 727,329.40, 1,090,994.10 and 412,401.40 is: 618,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,329.40 : 1,090,994.10 = 412,401.40 : x
  2. Step 2: Convert to fraction form
    727,329.40/1,090,994.10 = 412,401.40/x
  3. Step 3: Cross multiply
    727,329.40x = 1,090,994.10 × 412,401.40
  4. Step 4: Simplify right side
    727,329.40x = 449,927,494,231.74
  5. Step 5: Solve for x
    x = 449,927,494,231.74/727,329.40
  6. Step 6: Final answer
    x = 618,602.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.