Home / 1,147,013-1,720,727.40-472,719.32

Finding the Fourth Proportional to 1,147,013, 1,720,727.40 and 472,719.32

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Solution

The fourth proportional to 1,147,013, 1,720,727.40 and 472,719.32 is: 709,164.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,013 : 1,720,727.40 = 472,719.32 : x
  2. Step 2: Convert to fraction form
    1,147,013/1,720,727.40 = 472,719.32/x
  3. Step 3: Cross multiply
    1,147,013x = 1,720,727.40 × 472,719.32
  4. Step 4: Simplify right side
    1,147,013x = 813,421,086,433.37
  5. Step 5: Solve for x
    x = 813,421,086,433.37/1,147,013
  6. Step 6: Final answer
    x = 709,164.66

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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.