Home / 1,218,731.16-1,681,828.34-674,855.32

Finding the Fourth Proportional to 1,218,731.16, 1,681,828.34 and 674,855.32

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Solution

The fourth proportional to 1,218,731.16, 1,681,828.34 and 674,855.32 is: 931,288.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,731.16 : 1,681,828.34 = 674,855.32 : x
  2. Step 2: Convert to fraction form
    1,218,731.16/1,681,828.34 = 674,855.32/x
  3. Step 3: Cross multiply
    1,218,731.16x = 1,681,828.34 × 674,855.32
  4. Step 4: Simplify right side
    1,218,731.16x = 1,134,990,802,575.77
  5. Step 5: Solve for x
    x = 1,134,990,802,575.77/1,218,731.16
  6. Step 6: Final answer
    x = 931,288.90

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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.