Home / 1,221,543.37-1,685,029.48-761,859.87

Finding the Fourth Proportional to 1,221,543.37, 1,685,029.48 and 761,859.87

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Solution

The fourth proportional to 1,221,543.37, 1,685,029.48 and 761,859.87 is: 1,050,929.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,543.37 : 1,685,029.48 = 761,859.87 : x
  2. Step 2: Convert to fraction form
    1,221,543.37/1,685,029.48 = 761,859.87/x
  3. Step 3: Cross multiply
    1,221,543.37x = 1,685,029.48 × 761,859.87
  4. Step 4: Simplify right side
    1,221,543.37x = 1,283,756,336,769.67
  5. Step 5: Solve for x
    x = 1,283,756,336,769.67/1,221,543.37
  6. Step 6: Final answer
    x = 1,050,929.81

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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.