Home / 983,218.76-1,356,971.21-553,582.61

Finding the Fourth Proportional to 983,218.76, 1,356,971.21 and 553,582.61

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Solution

The fourth proportional to 983,218.76, 1,356,971.21 and 553,582.61 is: 764,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,218.76 : 1,356,971.21 = 553,582.61 : x
  2. Step 2: Convert to fraction form
    983,218.76/1,356,971.21 = 553,582.61/x
  3. Step 3: Cross multiply
    983,218.76x = 1,356,971.21 × 553,582.61
  4. Step 4: Simplify right side
    983,218.76x = 751,195,668,903.04
  5. Step 5: Solve for x
    x = 751,195,668,903.04/983,218.76
  6. Step 6: Final answer
    x = 764,016.82

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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.