Home / 1,218,732.16-1,681,829.72-674,856.32

Finding the Fourth Proportional to 1,218,732.16, 1,681,829.72 and 674,856.32

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Solution

The fourth proportional to 1,218,732.16, 1,681,829.72 and 674,856.32 is: 931,290.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,732.16 : 1,681,829.72 = 674,856.32 : x
  2. Step 2: Convert to fraction form
    1,218,732.16/1,681,829.72 = 674,856.32/x
  3. Step 3: Cross multiply
    1,218,732.16x = 1,681,829.72 × 674,856.32
  4. Step 4: Simplify right side
    1,218,732.16x = 1,134,993,415,705.83
  5. Step 5: Solve for x
    x = 1,134,993,415,705.83/1,218,732.16
  6. Step 6: Final answer
    x = 931,290.28

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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.