Home / 684,920.70-1,027,381.05-665,237.70

Finding the Fourth Proportional to 684,920.70, 1,027,381.05 and 665,237.70

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Solution

The fourth proportional to 684,920.70, 1,027,381.05 and 665,237.70 is: 997,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,920.70 : 1,027,381.05 = 665,237.70 : x
  2. Step 2: Convert to fraction form
    684,920.70/1,027,381.05 = 665,237.70/x
  3. Step 3: Cross multiply
    684,920.70x = 1,027,381.05 × 665,237.70
  4. Step 4: Simplify right side
    684,920.70x = 683,452,606,725.59
  5. Step 5: Solve for x
    x = 683,452,606,725.59/684,920.70
  6. Step 6: Final answer
    x = 997,856.55

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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.