Home / 902,111.76-1,244,897.64-520,154.64

Finding the Fourth Proportional to 902,111.76, 1,244,897.64 and 520,154.64

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Solution

The fourth proportional to 902,111.76, 1,244,897.64 and 520,154.64 is: 717,803.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,111.76 : 1,244,897.64 = 520,154.64 : x
  2. Step 2: Convert to fraction form
    902,111.76/1,244,897.64 = 520,154.64/x
  3. Step 3: Cross multiply
    902,111.76x = 1,244,897.64 × 520,154.64
  4. Step 4: Simplify right side
    902,111.76x = 647,539,283,771.05
  5. Step 5: Solve for x
    x = 647,539,283,771.05/902,111.76
  6. Step 6: Final answer
    x = 717,803.84

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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.