Home / 1,298,029.25-1,790,116.80-1,080,956.74

Finding the Fourth Proportional to 1,298,029.25, 1,790,116.80 and 1,080,956.74

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Solution

The fourth proportional to 1,298,029.25, 1,790,116.80 and 1,080,956.74 is: 1,490,751.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,029.25 : 1,790,116.80 = 1,080,956.74 : x
  2. Step 2: Convert to fraction form
    1,298,029.25/1,790,116.80 = 1,080,956.74/x
  3. Step 3: Cross multiply
    1,298,029.25x = 1,790,116.80 × 1,080,956.74
  4. Step 4: Simplify right side
    1,298,029.25x = 1,935,038,820,347.23
  5. Step 5: Solve for x
    x = 1,935,038,820,347.23/1,298,029.25
  6. Step 6: Final answer
    x = 1,490,751.32

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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.