Home / 1,079,662.90-1,490,930.13-723,003.70

Finding the Fourth Proportional to 1,079,662.90, 1,490,930.13 and 723,003.70

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Solution

The fourth proportional to 1,079,662.90, 1,490,930.13 and 723,003.70 is: 998,411.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,662.90 : 1,490,930.13 = 723,003.70 : x
  2. Step 2: Convert to fraction form
    1,079,662.90/1,490,930.13 = 723,003.70/x
  3. Step 3: Cross multiply
    1,079,662.90x = 1,490,930.13 × 723,003.70
  4. Step 4: Simplify right side
    1,079,662.90x = 1,077,948,000,431.48
  5. Step 5: Solve for x
    x = 1,077,948,000,431.48/1,079,662.90
  6. Step 6: Final answer
    x = 998,411.63

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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.