Home / 1,072,339.92-1,479,459.08-685,381.88

Finding the Fourth Proportional to 1,072,339.92, 1,479,459.08 and 685,381.88

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Solution

The fourth proportional to 1,072,339.92, 1,479,459.08 and 685,381.88 is: 945,590.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,339.92 : 1,479,459.08 = 685,381.88 : x
  2. Step 2: Convert to fraction form
    1,072,339.92/1,479,459.08 = 685,381.88/x
  3. Step 3: Cross multiply
    1,072,339.92x = 1,479,459.08 × 685,381.88
  4. Step 4: Simplify right side
    1,072,339.92x = 1,013,994,445,633.47
  5. Step 5: Solve for x
    x = 1,013,994,445,633.47/1,072,339.92
  6. Step 6: Final answer
    x = 945,590.50

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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.