Home / 2,166,387.50-2,989,717.43-1,306,929.30

Finding the Fourth Proportional to 2,166,387.50, 2,989,717.43 and 1,306,929.30

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Solution

The fourth proportional to 2,166,387.50, 2,989,717.43 and 1,306,929.30 is: 1,803,624.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,387.50 : 2,989,717.43 = 1,306,929.30 : x
  2. Step 2: Convert to fraction form
    2,166,387.50/2,989,717.43 = 1,306,929.30/x
  3. Step 3: Cross multiply
    2,166,387.50x = 2,989,717.43 × 1,306,929.30
  4. Step 4: Simplify right side
    2,166,387.50x = 3,907,349,307,987.70
  5. Step 5: Solve for x
    x = 3,907,349,307,987.70/2,166,387.50
  6. Step 6: Final answer
    x = 1,803,624.38

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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.