Home / 765,367.80-1,148,051.70-485,201.40

Finding the Fourth Proportional to 765,367.80, 1,148,051.70 and 485,201.40

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Solution

The fourth proportional to 765,367.80, 1,148,051.70 and 485,201.40 is: 727,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,367.80 : 1,148,051.70 = 485,201.40 : x
  2. Step 2: Convert to fraction form
    765,367.80/1,148,051.70 = 485,201.40/x
  3. Step 3: Cross multiply
    765,367.80x = 1,148,051.70 × 485,201.40
  4. Step 4: Simplify right side
    765,367.80x = 557,036,292,112.38
  5. Step 5: Solve for x
    x = 557,036,292,112.38/765,367.80
  6. Step 6: Final answer
    x = 727,802.10

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Similar ratio
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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.