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Finding the Fourth Proportional to 555,976.40, 833,964.60 and 512,673.80

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Solution

The fourth proportional to 555,976.40, 833,964.60 and 512,673.80 is: 769,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,976.40 : 833,964.60 = 512,673.80 : x
  2. Step 2: Convert to fraction form
    555,976.40/833,964.60 = 512,673.80/x
  3. Step 3: Cross multiply
    555,976.40x = 833,964.60 × 512,673.80
  4. Step 4: Simplify right side
    555,976.40x = 427,551,800,547.48
  5. Step 5: Solve for x
    x = 427,551,800,547.48/555,976.40
  6. Step 6: Final answer
    x = 769,010.70

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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.