Home / 1,290,931.57-1,781,548.66-717,959.44

Finding the Fourth Proportional to 1,290,931.57, 1,781,548.66 and 717,959.44

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Solution

The fourth proportional to 1,290,931.57, 1,781,548.66 and 717,959.44 is: 990,819.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,931.57 : 1,781,548.66 = 717,959.44 : x
  2. Step 2: Convert to fraction form
    1,290,931.57/1,781,548.66 = 717,959.44/x
  3. Step 3: Cross multiply
    1,290,931.57x = 1,781,548.66 × 717,959.44
  4. Step 4: Simplify right side
    1,290,931.57x = 1,279,079,678,266.35
  5. Step 5: Solve for x
    x = 1,279,079,678,266.35/1,290,931.57
  6. Step 6: Final answer
    x = 990,819.12

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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.