Home / 1,315,520.76-1,815,424.30-711,908.76

Finding the Fourth Proportional to 1,315,520.76, 1,815,424.30 and 711,908.76

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Solution

The fourth proportional to 1,315,520.76, 1,815,424.30 and 711,908.76 is: 982,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,520.76 : 1,815,424.30 = 711,908.76 : x
  2. Step 2: Convert to fraction form
    1,315,520.76/1,815,424.30 = 711,908.76/x
  3. Step 3: Cross multiply
    1,315,520.76x = 1,815,424.30 × 711,908.76
  4. Step 4: Simplify right side
    1,315,520.76x = 1,292,416,462,286.87
  5. Step 5: Solve for x
    x = 1,292,416,462,286.87/1,315,520.76
  6. Step 6: Final answer
    x = 982,437.15

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Double scale
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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.