Home / 780,505.38-1,169,918.16-510,531.84

Finding the Fourth Proportional to 780,505.38, 1,169,918.16 and 510,531.84

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Solution

The fourth proportional to 780,505.38, 1,169,918.16 and 510,531.84 is: 765,248.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,505.38 : 1,169,918.16 = 510,531.84 : x
  2. Step 2: Convert to fraction form
    780,505.38/1,169,918.16 = 510,531.84/x
  3. Step 3: Cross multiply
    780,505.38x = 1,169,918.16 × 510,531.84
  4. Step 4: Simplify right side
    780,505.38x = 597,280,470,874.21
  5. Step 5: Solve for x
    x = 597,280,470,874.21/780,505.38
  6. Step 6: Final answer
    x = 765,248.37

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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.