Home / 3,118,396.50-4,303,387.20-1,687,612.50

Finding the Fourth Proportional to 3,118,396.50, 4,303,387.20 and 1,687,612.50

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Solution

The fourth proportional to 3,118,396.50, 4,303,387.20 and 1,687,612.50 is: 2,328,905.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,396.50 : 4,303,387.20 = 1,687,612.50 : x
  2. Step 2: Convert to fraction form
    3,118,396.50/4,303,387.20 = 1,687,612.50/x
  3. Step 3: Cross multiply
    3,118,396.50x = 4,303,387.20 × 1,687,612.50
  4. Step 4: Simplify right side
    3,118,396.50x = 7,262,450,031,060
  5. Step 5: Solve for x
    x = 7,262,450,031,060/3,118,396.50
  6. Step 6: Final answer
    x = 2,328,905.27

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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.