Home / 985,836.48-1,359,827.88-646,326.48

Finding the Fourth Proportional to 985,836.48, 1,359,827.88 and 646,326.48

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Solution

The fourth proportional to 985,836.48, 1,359,827.88 and 646,326.48 is: 891,519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,836.48 : 1,359,827.88 = 646,326.48 : x
  2. Step 2: Convert to fraction form
    985,836.48/1,359,827.88 = 646,326.48/x
  3. Step 3: Cross multiply
    985,836.48x = 1,359,827.88 × 646,326.48
  4. Step 4: Simplify right side
    985,836.48x = 878,892,767,086.26
  5. Step 5: Solve for x
    x = 878,892,767,086.26/985,836.48
  6. Step 6: Final answer
    x = 891,519.83

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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.