Home / 689,903.84-1,034,856.04-310,381.36

Finding the Fourth Proportional to 689,903.84, 1,034,856.04 and 310,381.36

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Solution

The fourth proportional to 689,903.84, 1,034,856.04 and 310,381.36 is: 465,572.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,903.84 : 1,034,856.04 = 310,381.36 : x
  2. Step 2: Convert to fraction form
    689,903.84/1,034,856.04 = 310,381.36/x
  3. Step 3: Cross multiply
    689,903.84x = 1,034,856.04 × 310,381.36
  4. Step 4: Simplify right side
    689,903.84x = 321,200,025,099.41
  5. Step 5: Solve for x
    x = 321,200,025,099.41/689,903.84
  6. Step 6: Final answer
    x = 465,572.17

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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.