Home / 1,242,337.70-1,863,547.97-343,704.20

Finding the Fourth Proportional to 1,242,337.70, 1,863,547.97 and 343,704.20

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Solution

The fourth proportional to 1,242,337.70, 1,863,547.97 and 343,704.20 is: 515,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,337.70 : 1,863,547.97 = 343,704.20 : x
  2. Step 2: Convert to fraction form
    1,242,337.70/1,863,547.97 = 343,704.20/x
  3. Step 3: Cross multiply
    1,242,337.70x = 1,863,547.97 × 343,704.20
  4. Step 4: Simplify right side
    1,242,337.70x = 640,509,253,154.21
  5. Step 5: Solve for x
    x = 640,509,253,154.21/1,242,337.70
  6. Step 6: Final answer
    x = 515,567.75

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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.