Home / 1,348,012.80-2,020,580.60-672,764.40

Finding the Fourth Proportional to 1,348,012.80, 2,020,580.60 and 672,764.40

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Solution

The fourth proportional to 1,348,012.80, 2,020,580.60 and 672,764.40 is: 1,008,428.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,012.80 : 2,020,580.60 = 672,764.40 : x
  2. Step 2: Convert to fraction form
    1,348,012.80/2,020,580.60 = 672,764.40/x
  3. Step 3: Cross multiply
    1,348,012.80x = 2,020,580.60 × 672,764.40
  4. Step 4: Simplify right side
    1,348,012.80x = 1,359,374,695,010.64
  5. Step 5: Solve for x
    x = 1,359,374,695,010.64/1,348,012.80
  6. Step 6: Final answer
    x = 1,008,428.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.