Home / 1,307,430.28-1,961,736.86-667,403.40

Finding the Fourth Proportional to 1,307,430.28, 1,961,736.86 and 667,403.40

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Solution

The fourth proportional to 1,307,430.28, 1,961,736.86 and 667,403.40 is: 1,001,407.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,430.28 : 1,961,736.86 = 667,403.40 : x
  2. Step 2: Convert to fraction form
    1,307,430.28/1,961,736.86 = 667,403.40/x
  3. Step 3: Cross multiply
    1,307,430.28x = 1,961,736.86 × 667,403.40
  4. Step 4: Simplify right side
    1,307,430.28x = 1,309,269,850,269.32
  5. Step 5: Solve for x
    x = 1,309,269,850,269.32/1,307,430.28
  6. Step 6: Final answer
    x = 1,001,407.01

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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.