Home / 720,356.38-1,080,580.65-277,124.38

Finding the Fourth Proportional to 720,356.38, 1,080,580.65 and 277,124.38

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Solution

The fourth proportional to 720,356.38, 1,080,580.65 and 277,124.38 is: 415,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,356.38 : 1,080,580.65 = 277,124.38 : x
  2. Step 2: Convert to fraction form
    720,356.38/1,080,580.65 = 277,124.38/x
  3. Step 3: Cross multiply
    720,356.38x = 1,080,580.65 × 277,124.38
  4. Step 4: Simplify right side
    720,356.38x = 299,455,242,671.25
  5. Step 5: Solve for x
    x = 299,455,242,671.25/720,356.38
  6. Step 6: Final answer
    x = 415,704.30

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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.