Home / 1,216,112.42-1,678,210.41-672,271.13

Finding the Fourth Proportional to 1,216,112.42, 1,678,210.41 and 672,271.13

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Solution

The fourth proportional to 1,216,112.42, 1,678,210.41 and 672,271.13 is: 927,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,112.42 : 1,678,210.41 = 672,271.13 : x
  2. Step 2: Convert to fraction form
    1,216,112.42/1,678,210.41 = 672,271.13/x
  3. Step 3: Cross multiply
    1,216,112.42x = 1,678,210.41 × 672,271.13
  4. Step 4: Simplify right side
    1,216,112.42x = 1,128,212,408,708.46
  5. Step 5: Solve for x
    x = 1,128,212,408,708.46/1,216,112.42
  6. Step 6: Final answer
    x = 927,720.49

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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.