Home / 1,340,756.76-1,850,280.81-728,950.68

Finding the Fourth Proportional to 1,340,756.76, 1,850,280.81 and 728,950.68

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Solution

The fourth proportional to 1,340,756.76, 1,850,280.81 and 728,950.68 is: 1,005,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,756.76 : 1,850,280.81 = 728,950.68 : x
  2. Step 2: Convert to fraction form
    1,340,756.76/1,850,280.81 = 728,950.68/x
  3. Step 3: Cross multiply
    1,340,756.76x = 1,850,280.81 × 728,950.68
  4. Step 4: Simplify right side
    1,340,756.76x = 1,348,763,454,640.45
  5. Step 5: Solve for x
    x = 1,348,763,454,640.45/1,340,756.76
  6. Step 6: Final answer
    x = 1,005,971.77

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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.