Home / 1,294,424.85-1,786,314.59-721,501.35

Finding the Fourth Proportional to 1,294,424.85, 1,786,314.59 and 721,501.35

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Solution

The fourth proportional to 1,294,424.85, 1,786,314.59 and 721,501.35 is: 995,676.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,424.85 : 1,786,314.59 = 721,501.35 : x
  2. Step 2: Convert to fraction form
    1,294,424.85/1,786,314.59 = 721,501.35/x
  3. Step 3: Cross multiply
    1,294,424.85x = 1,786,314.59 × 721,501.35
  4. Step 4: Simplify right side
    1,294,424.85x = 1,288,828,384,602.19
  5. Step 5: Solve for x
    x = 1,288,828,384,602.19/1,294,424.85
  6. Step 6: Final answer
    x = 995,676.48

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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.