Home / 686,969.27-1,030,456.54-287,329.70

Finding the Fourth Proportional to 686,969.27, 1,030,456.54 and 287,329.70

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Solution

The fourth proportional to 686,969.27, 1,030,456.54 and 287,329.70 is: 430,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,969.27 : 1,030,456.54 = 287,329.70 : x
  2. Step 2: Convert to fraction form
    686,969.27/1,030,456.54 = 287,329.70/x
  3. Step 3: Cross multiply
    686,969.27x = 1,030,456.54 × 287,329.70
  4. Step 4: Simplify right side
    686,969.27x = 296,080,768,501.24
  5. Step 5: Solve for x
    x = 296,080,768,501.24/686,969.27
  6. Step 6: Final answer
    x = 430,995.65

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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.