Home / 2,118,292.67-3,175,648.40-919,313.66

Finding the Fourth Proportional to 2,118,292.67, 3,175,648.40 and 919,313.66

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Solution

The fourth proportional to 2,118,292.67, 3,175,648.40 and 919,313.66 is: 1,378,193.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,292.67 : 3,175,648.40 = 919,313.66 : x
  2. Step 2: Convert to fraction form
    2,118,292.67/3,175,648.40 = 919,313.66/x
  3. Step 3: Cross multiply
    2,118,292.67x = 3,175,648.40 × 919,313.66
  4. Step 4: Simplify right side
    2,118,292.67x = 2,919,416,963,714.55
  5. Step 5: Solve for x
    x = 2,919,416,963,714.55/2,118,292.67
  6. Step 6: Final answer
    x = 1,378,193.39

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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.