Home / 1,291,731.93-1,783,086.08-970,374.15

Finding the Fourth Proportional to 1,291,731.93, 1,783,086.08 and 970,374.15

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Solution

The fourth proportional to 1,291,731.93, 1,783,086.08 and 970,374.15 is: 1,339,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,731.93 : 1,783,086.08 = 970,374.15 : x
  2. Step 2: Convert to fraction form
    1,291,731.93/1,783,086.08 = 970,374.15/x
  3. Step 3: Cross multiply
    1,291,731.93x = 1,783,086.08 × 970,374.15
  4. Step 4: Simplify right side
    1,291,731.93x = 1,730,260,634,404.96
  5. Step 5: Solve for x
    x = 1,730,260,634,404.96/1,291,731.93
  6. Step 6: Final answer
    x = 1,339,488.94

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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.