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Finding the Fourth Proportional to 683,959.30, 943,374.28 and 480,055.70

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Solution

The fourth proportional to 683,959.30, 943,374.28 and 480,055.70 is: 662,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,959.30 : 943,374.28 = 480,055.70 : x
  2. Step 2: Convert to fraction form
    683,959.30/943,374.28 = 480,055.70/x
  3. Step 3: Cross multiply
    683,959.30x = 943,374.28 × 480,055.70
  4. Step 4: Simplify right side
    683,959.30x = 452,872,200,347.40
  5. Step 5: Solve for x
    x = 452,872,200,347.40/683,959.30
  6. Step 6: Final answer
    x = 662,133.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.