Home / 1,382,041.68-1,907,133.61-761,819.69

Finding the Fourth Proportional to 1,382,041.68, 1,907,133.61 and 761,819.69

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Solution

The fourth proportional to 1,382,041.68, 1,907,133.61 and 761,819.69 is: 1,051,264.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,041.68 : 1,907,133.61 = 761,819.69 : x
  2. Step 2: Convert to fraction form
    1,382,041.68/1,907,133.61 = 761,819.69/x
  3. Step 3: Cross multiply
    1,382,041.68x = 1,907,133.61 × 761,819.69
  4. Step 4: Simplify right side
    1,382,041.68x = 1,452,891,935,558.78
  5. Step 5: Solve for x
    x = 1,452,891,935,558.78/1,382,041.68
  6. Step 6: Final answer
    x = 1,051,264.92

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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.