Home / 1,289,107.70-1,779,253.17-716,344.82

Finding the Fourth Proportional to 1,289,107.70, 1,779,253.17 and 716,344.82

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Solution

The fourth proportional to 1,289,107.70, 1,779,253.17 and 716,344.82 is: 988,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,107.70 : 1,779,253.17 = 716,344.82 : x
  2. Step 2: Convert to fraction form
    1,289,107.70/1,779,253.17 = 716,344.82/x
  3. Step 3: Cross multiply
    1,289,107.70x = 1,779,253.17 × 716,344.82
  4. Step 4: Simplify right side
    1,289,107.70x = 1,274,558,791,798.08
  5. Step 5: Solve for x
    x = 1,274,558,791,798.08/1,289,107.70
  6. Step 6: Final answer
    x = 988,713.97

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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.