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Finding the Fourth Proportional to 551,315.70, 772,629.30 and 551,315.70

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Solution

The fourth proportional to 551,315.70, 772,629.30 and 551,315.70 is: 772,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,315.70 : 772,629.30 = 551,315.70 : x
  2. Step 2: Convert to fraction form
    551,315.70/772,629.30 = 551,315.70/x
  3. Step 3: Cross multiply
    551,315.70x = 772,629.30 × 551,315.70
  4. Step 4: Simplify right side
    551,315.70x = 425,962,663,370.01
  5. Step 5: Solve for x
    x = 425,962,663,370.01/551,315.70
  6. Step 6: Final answer
    x = 772,629.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.