Home / 1,442,565.62-1,990,567.10-830,917.31

Finding the Fourth Proportional to 1,442,565.62, 1,990,567.10 and 830,917.31

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Solution

The fourth proportional to 1,442,565.62, 1,990,567.10 and 830,917.31 is: 1,146,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,565.62 : 1,990,567.10 = 830,917.31 : x
  2. Step 2: Convert to fraction form
    1,442,565.62/1,990,567.10 = 830,917.31/x
  3. Step 3: Cross multiply
    1,442,565.62x = 1,990,567.10 × 830,917.31
  4. Step 4: Simplify right side
    1,442,565.62x = 1,653,996,652,230.96
  5. Step 5: Solve for x
    x = 1,653,996,652,230.96/1,442,565.62
  6. Step 6: Final answer
    x = 1,146,565.97

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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.