Home / 1,442,666.43-1,990,900.62-830,929.05

Finding the Fourth Proportional to 1,442,666.43, 1,990,900.62 and 830,929.05

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Solution

The fourth proportional to 1,442,666.43, 1,990,900.62 and 830,929.05 is: 1,146,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,666.43 : 1,990,900.62 = 830,929.05 : x
  2. Step 2: Convert to fraction form
    1,442,666.43/1,990,900.62 = 830,929.05/x
  3. Step 3: Cross multiply
    1,442,666.43x = 1,990,900.62 × 830,929.05
  4. Step 4: Simplify right side
    1,442,666.43x = 1,654,297,160,821.01
  5. Step 5: Solve for x
    x = 1,654,297,160,821.01/1,442,666.43
  6. Step 6: Final answer
    x = 1,146,694.15

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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.