Home / 913,780-1,260,841.44-591,445.36

Finding the Fourth Proportional to 913,780, 1,260,841.44 and 591,445.36

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Solution

The fourth proportional to 913,780, 1,260,841.44 and 591,445.36 is: 816,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,780 : 1,260,841.44 = 591,445.36 : x
  2. Step 2: Convert to fraction form
    913,780/1,260,841.44 = 591,445.36/x
  3. Step 3: Cross multiply
    913,780x = 1,260,841.44 × 591,445.36
  4. Step 4: Simplify right side
    913,780x = 745,718,819,383.72
  5. Step 5: Solve for x
    x = 745,718,819,383.72/913,780
  6. Step 6: Final answer
    x = 816,081.35

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1.5x scale

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.