Home / 772,790.22-1,065,218.28-609,179.91

Finding the Fourth Proportional to 772,790.22, 1,065,218.28 and 609,179.91

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Solution

The fourth proportional to 772,790.22, 1,065,218.28 and 609,179.91 is: 839,696.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,790.22 : 1,065,218.28 = 609,179.91 : x
  2. Step 2: Convert to fraction form
    772,790.22/1,065,218.28 = 609,179.91/x
  3. Step 3: Cross multiply
    772,790.22x = 1,065,218.28 × 609,179.91
  4. Step 4: Simplify right side
    772,790.22x = 648,909,569,661.76
  5. Step 5: Solve for x
    x = 648,909,569,661.76/772,790.22
  6. Step 6: Final answer
    x = 839,696.92

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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.