Home / 647,985.30-971,540.55-344,429.70

Finding the Fourth Proportional to 647,985.30, 971,540.55 and 344,429.70

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Solution

The fourth proportional to 647,985.30, 971,540.55 and 344,429.70 is: 516,412.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,985.30 : 971,540.55 = 344,429.70 : x
  2. Step 2: Convert to fraction form
    647,985.30/971,540.55 = 344,429.70/x
  3. Step 3: Cross multiply
    647,985.30x = 971,540.55 × 344,429.70
  4. Step 4: Simplify right side
    647,985.30x = 334,627,420,174.34
  5. Step 5: Solve for x
    x = 334,627,420,174.34/647,985.30
  6. Step 6: Final answer
    x = 516,412.05

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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.