Home / 719,857.05-1,079,785.58-709,359.45

Finding the Fourth Proportional to 719,857.05, 1,079,785.58 and 709,359.45

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Solution

The fourth proportional to 719,857.05, 1,079,785.58 and 709,359.45 is: 1,064,039.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,857.05 : 1,079,785.58 = 709,359.45 : x
  2. Step 2: Convert to fraction form
    719,857.05/1,079,785.58 = 709,359.45/x
  3. Step 3: Cross multiply
    719,857.05x = 1,079,785.58 × 709,359.45
  4. Step 4: Simplify right side
    719,857.05x = 765,956,101,599.93
  5. Step 5: Solve for x
    x = 765,956,101,599.93/719,857.05
  6. Step 6: Final answer
    x = 1,064,039.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.