Home / 2,688,730.80-4,031,929.80-890,919.60

Finding the Fourth Proportional to 2,688,730.80, 4,031,929.80 and 890,919.60

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Solution

The fourth proportional to 2,688,730.80, 4,031,929.80 and 890,919.60 is: 1,335,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,730.80 : 4,031,929.80 = 890,919.60 : x
  2. Step 2: Convert to fraction form
    2,688,730.80/4,031,929.80 = 890,919.60/x
  3. Step 3: Cross multiply
    2,688,730.80x = 4,031,929.80 × 890,919.60
  4. Step 4: Simplify right side
    2,688,730.80x = 3,592,125,284,644.08
  5. Step 5: Solve for x
    x = 3,592,125,284,644.08/2,688,730.80
  6. Step 6: Final answer
    x = 1,335,992.91

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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.