Home / 1,097,291.80-1,642,730.10-782,363.80

Finding the Fourth Proportional to 1,097,291.80, 1,642,730.10 and 782,363.80

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Solution

The fourth proportional to 1,097,291.80, 1,642,730.10 and 782,363.80 is: 1,171,258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,291.80 : 1,642,730.10 = 782,363.80 : x
  2. Step 2: Convert to fraction form
    1,097,291.80/1,642,730.10 = 782,363.80/x
  3. Step 3: Cross multiply
    1,097,291.80x = 1,642,730.10 × 782,363.80
  4. Step 4: Simplify right side
    1,097,291.80x = 1,285,212,563,410.38
  5. Step 5: Solve for x
    x = 1,285,212,563,410.38/1,097,291.80
  6. Step 6: Final answer
    x = 1,171,258.70

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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.