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Finding the Fourth Proportional to 628,302.80, 941,071.80 and 545,358.80

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Solution

The fourth proportional to 628,302.80, 941,071.80 and 545,358.80 is: 816,838.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,302.80 : 941,071.80 = 545,358.80 : x
  2. Step 2: Convert to fraction form
    628,302.80/941,071.80 = 545,358.80/x
  3. Step 3: Cross multiply
    628,302.80x = 941,071.80 × 545,358.80
  4. Step 4: Simplify right side
    628,302.80x = 513,221,787,561.84
  5. Step 5: Solve for x
    x = 513,221,787,561.84/628,302.80
  6. Step 6: Final answer
    x = 816,838.29

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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.