Home / 1,316,031.92-1,815,812.80-764,419.86

Finding the Fourth Proportional to 1,316,031.92, 1,815,812.80 and 764,419.86

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Solution

The fourth proportional to 1,316,031.92, 1,815,812.80 and 764,419.86 is: 1,054,718.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,031.92 : 1,815,812.80 = 764,419.86 : x
  2. Step 2: Convert to fraction form
    1,316,031.92/1,815,812.80 = 764,419.86/x
  3. Step 3: Cross multiply
    1,316,031.92x = 1,815,812.80 × 764,419.86
  4. Step 4: Simplify right side
    1,316,031.92x = 1,388,043,365,324.34
  5. Step 5: Solve for x
    x = 1,388,043,365,324.34/1,316,031.92
  6. Step 6: Final answer
    x = 1,054,718.62

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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.