Home / 1,209,341.75-1,810,025.60-668,766.38

Finding the Fourth Proportional to 1,209,341.75, 1,810,025.60 and 668,766.38

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Solution

The fourth proportional to 1,209,341.75, 1,810,025.60 and 668,766.38 is: 1,000,944.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,341.75 : 1,810,025.60 = 668,766.38 : x
  2. Step 2: Convert to fraction form
    1,209,341.75/1,810,025.60 = 668,766.38/x
  3. Step 3: Cross multiply
    1,209,341.75x = 1,810,025.60 × 668,766.38
  4. Step 4: Simplify right side
    1,209,341.75x = 1,210,484,255,825.37
  5. Step 5: Solve for x
    x = 1,210,484,255,825.37/1,209,341.75
  6. Step 6: Final answer
    x = 1,000,944.74

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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.