Home / 1,280,445.10-1,767,010.59-707,481.19

Finding the Fourth Proportional to 1,280,445.10, 1,767,010.59 and 707,481.19

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Solution

The fourth proportional to 1,280,445.10, 1,767,010.59 and 707,481.19 is: 976,322.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,445.10 : 1,767,010.59 = 707,481.19 : x
  2. Step 2: Convert to fraction form
    1,280,445.10/1,767,010.59 = 707,481.19/x
  3. Step 3: Cross multiply
    1,280,445.10x = 1,767,010.59 × 707,481.19
  4. Step 4: Simplify right side
    1,280,445.10x = 1,250,126,754,955.80
  5. Step 5: Solve for x
    x = 1,250,126,754,955.80/1,280,445.10
  6. Step 6: Final answer
    x = 976,322.03

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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.