Home / 689,214.61-1,033,685.61-655,036.84

Finding the Fourth Proportional to 689,214.61, 1,033,685.61 and 655,036.84

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Solution

The fourth proportional to 689,214.61, 1,033,685.61 and 655,036.84 is: 982,425.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,214.61 : 1,033,685.61 = 655,036.84 : x
  2. Step 2: Convert to fraction form
    689,214.61/1,033,685.61 = 655,036.84/x
  3. Step 3: Cross multiply
    689,214.61x = 1,033,685.61 × 655,036.84
  4. Step 4: Simplify right side
    689,214.61x = 677,102,155,527.87
  5. Step 5: Solve for x
    x = 677,102,155,527.87/689,214.61
  6. Step 6: Final answer
    x = 982,425.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.