Home / 4,638,948.40-6,401,964.20-2,897,648.72

Finding the Fourth Proportional to 4,638,948.40, 6,401,964.20 and 2,897,648.72

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Solution

The fourth proportional to 4,638,948.40, 6,401,964.20 and 2,897,648.72 is: 3,998,889.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638,948.40 : 6,401,964.20 = 2,897,648.72 : x
  2. Step 2: Convert to fraction form
    4,638,948.40/6,401,964.20 = 2,897,648.72/x
  3. Step 3: Cross multiply
    4,638,948.40x = 6,401,964.20 × 2,897,648.72
  4. Step 4: Simplify right side
    4,638,948.40x = 18,550,643,369,615.82
  5. Step 5: Solve for x
    x = 18,550,643,369,615.82/4,638,948.40
  6. Step 6: Final answer
    x = 3,998,889.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.