Home / 1,689,530.76-2,534,304.70-427,359.60

Finding the Fourth Proportional to 1,689,530.76, 2,534,304.70 and 427,359.60

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Solution

The fourth proportional to 1,689,530.76, 2,534,304.70 and 427,359.60 is: 641,041.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,530.76 : 2,534,304.70 = 427,359.60 : x
  2. Step 2: Convert to fraction form
    1,689,530.76/2,534,304.70 = 427,359.60/x
  3. Step 3: Cross multiply
    1,689,530.76x = 2,534,304.70 × 427,359.60
  4. Step 4: Simplify right side
    1,689,530.76x = 1,083,059,442,870.12
  5. Step 5: Solve for x
    x = 1,083,059,442,870.12/1,689,530.76
  6. Step 6: Final answer
    x = 641,041.57

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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.