Home / 1,676,297.61-2,313,339.83-912,400.65

Finding the Fourth Proportional to 1,676,297.61, 2,313,339.83 and 912,400.65

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Solution

The fourth proportional to 1,676,297.61, 2,313,339.83 and 912,400.65 is: 1,259,139.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676,297.61 : 2,313,339.83 = 912,400.65 : x
  2. Step 2: Convert to fraction form
    1,676,297.61/2,313,339.83 = 912,400.65/x
  3. Step 3: Cross multiply
    1,676,297.61x = 2,313,339.83 × 912,400.65
  4. Step 4: Simplify right side
    1,676,297.61x = 2,110,692,760,000.89
  5. Step 5: Solve for x
    x = 2,110,692,760,000.89/1,676,297.61
  6. Step 6: Final answer
    x = 1,259,139.63

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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.