Home / 688,150.89-949,318.65-484,314.93

Finding the Fourth Proportional to 688,150.89, 949,318.65 and 484,314.93

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Solution

The fourth proportional to 688,150.89, 949,318.65 and 484,314.93 is: 668,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,150.89 : 949,318.65 = 484,314.93 : x
  2. Step 2: Convert to fraction form
    688,150.89/949,318.65 = 484,314.93/x
  3. Step 3: Cross multiply
    688,150.89x = 949,318.65 × 484,314.93
  4. Step 4: Simplify right side
    688,150.89x = 459,769,195,522.45
  5. Step 5: Solve for x
    x = 459,769,195,522.45/688,150.89
  6. Step 6: Final answer
    x = 668,122.65

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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.