Home / 734,812.18-1,013,970.82-412,448.38

Finding the Fourth Proportional to 734,812.18, 1,013,970.82 and 412,448.38

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Solution

The fourth proportional to 734,812.18, 1,013,970.82 and 412,448.38 is: 569,139.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,812.18 : 1,013,970.82 = 412,448.38 : x
  2. Step 2: Convert to fraction form
    734,812.18/1,013,970.82 = 412,448.38/x
  3. Step 3: Cross multiply
    734,812.18x = 1,013,970.82 × 412,448.38
  4. Step 4: Simplify right side
    734,812.18x = 418,210,622,076.27
  5. Step 5: Solve for x
    x = 418,210,622,076.27/734,812.18
  6. Step 6: Final answer
    x = 569,139.48

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1.5x scale

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.