Home / 1,205,343.36-1,663,358.40-661,484.16

Finding the Fourth Proportional to 1,205,343.36, 1,663,358.40 and 661,484.16

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Solution

The fourth proportional to 1,205,343.36, 1,663,358.40 and 661,484.16 is: 912,839.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,343.36 : 1,663,358.40 = 661,484.16 : x
  2. Step 2: Convert to fraction form
    1,205,343.36/1,663,358.40 = 661,484.16/x
  3. Step 3: Cross multiply
    1,205,343.36x = 1,663,358.40 × 661,484.16
  4. Step 4: Simplify right side
    1,205,343.36x = 1,100,285,234,002.94
  5. Step 5: Solve for x
    x = 1,100,285,234,002.94/1,205,343.36
  6. Step 6: Final answer
    x = 912,839.67

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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.