Home / 1,339,364.57-2,009,041.38-486,434.57

Finding the Fourth Proportional to 1,339,364.57, 2,009,041.38 and 486,434.57

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Solution

The fourth proportional to 1,339,364.57, 2,009,041.38 and 486,434.57 is: 729,649.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,364.57 : 2,009,041.38 = 486,434.57 : x
  2. Step 2: Convert to fraction form
    1,339,364.57/2,009,041.38 = 486,434.57/x
  3. Step 3: Cross multiply
    1,339,364.57x = 2,009,041.38 × 486,434.57
  4. Step 4: Simplify right side
    1,339,364.57x = 977,267,169,747.30
  5. Step 5: Solve for x
    x = 977,267,169,747.30/1,339,364.57
  6. Step 6: Final answer
    x = 729,649.86

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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.