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Finding the Fourth Proportional to 545,045.70, 763,851.30 and 545,045.70

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Solution

The fourth proportional to 545,045.70, 763,851.30 and 545,045.70 is: 763,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,045.70 : 763,851.30 = 545,045.70 : x
  2. Step 2: Convert to fraction form
    545,045.70/763,851.30 = 545,045.70/x
  3. Step 3: Cross multiply
    545,045.70x = 763,851.30 × 545,045.70
  4. Step 4: Simplify right side
    545,045.70x = 416,333,866,504.41
  5. Step 5: Solve for x
    x = 416,333,866,504.41/545,045.70
  6. Step 6: Final answer
    x = 763,851.30

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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.