Home / 1,295,490.60-1,788,609.06-812,717.64

Finding the Fourth Proportional to 1,295,490.60, 1,788,609.06 and 812,717.64

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Solution

The fourth proportional to 1,295,490.60, 1,788,609.06 and 812,717.64 is: 1,122,072.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,490.60 : 1,788,609.06 = 812,717.64 : x
  2. Step 2: Convert to fraction form
    1,295,490.60/1,788,609.06 = 812,717.64/x
  3. Step 3: Cross multiply
    1,295,490.60x = 1,788,609.06 × 812,717.64
  4. Step 4: Simplify right side
    1,295,490.60x = 1,453,634,134,125.82
  5. Step 5: Solve for x
    x = 1,453,634,134,125.82/1,295,490.60
  6. Step 6: Final answer
    x = 1,122,072.31

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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.