Home / 917,688.30-1,376,532.45-412,491.30

Finding the Fourth Proportional to 917,688.30, 1,376,532.45 and 412,491.30

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Solution

The fourth proportional to 917,688.30, 1,376,532.45 and 412,491.30 is: 618,736.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,688.30 : 1,376,532.45 = 412,491.30 : x
  2. Step 2: Convert to fraction form
    917,688.30/1,376,532.45 = 412,491.30/x
  3. Step 3: Cross multiply
    917,688.30x = 1,376,532.45 × 412,491.30
  4. Step 4: Simplify right side
    917,688.30x = 567,807,659,792.69
  5. Step 5: Solve for x
    x = 567,807,659,792.69/917,688.30
  6. Step 6: Final answer
    x = 618,736.95

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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.