Home / 910,727.76-1,257,819.30-709,203

Finding the Fourth Proportional to 910,727.76, 1,257,819.30 and 709,203

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Solution

The fourth proportional to 910,727.76, 1,257,819.30 and 709,203 is: 979,490.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,727.76 : 1,257,819.30 = 709,203 : x
  2. Step 2: Convert to fraction form
    910,727.76/1,257,819.30 = 709,203/x
  3. Step 3: Cross multiply
    910,727.76x = 1,257,819.30 × 709,203
  4. Step 4: Simplify right side
    910,727.76x = 892,049,221,017.90
  5. Step 5: Solve for x
    x = 892,049,221,017.90/910,727.76
  6. Step 6: Final answer
    x = 979,490.54

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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.