Home / 1,371,788.80-1,893,992.40-856,327.48

Finding the Fourth Proportional to 1,371,788.80, 1,893,992.40 and 856,327.48

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Solution

The fourth proportional to 1,371,788.80, 1,893,992.40 and 856,327.48 is: 1,182,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,788.80 : 1,893,992.40 = 856,327.48 : x
  2. Step 2: Convert to fraction form
    1,371,788.80/1,893,992.40 = 856,327.48/x
  3. Step 3: Cross multiply
    1,371,788.80x = 1,893,992.40 × 856,327.48
  4. Step 4: Simplify right side
    1,371,788.80x = 1,621,877,739,031.15
  5. Step 5: Solve for x
    x = 1,621,877,739,031.15/1,371,788.80
  6. Step 6: Final answer
    x = 1,182,308.63

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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.