Home / 679,946.10-1,017,845.55-398,627.70

Finding the Fourth Proportional to 679,946.10, 1,017,845.55 and 398,627.70

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Solution

The fourth proportional to 679,946.10, 1,017,845.55 and 398,627.70 is: 596,725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,946.10 : 1,017,845.55 = 398,627.70 : x
  2. Step 2: Convert to fraction form
    679,946.10/1,017,845.55 = 398,627.70/x
  3. Step 3: Cross multiply
    679,946.10x = 1,017,845.55 × 398,627.70
  4. Step 4: Simplify right side
    679,946.10x = 405,741,430,551.74
  5. Step 5: Solve for x
    x = 405,741,430,551.74/679,946.10
  6. Step 6: Final answer
    x = 596,725.87

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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.