Home / 753,497.60-1,130,116.80-279,939.20

Finding the Fourth Proportional to 753,497.60, 1,130,116.80 and 279,939.20

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Solution

The fourth proportional to 753,497.60, 1,130,116.80 and 279,939.20 is: 419,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,497.60 : 1,130,116.80 = 279,939.20 : x
  2. Step 2: Convert to fraction form
    753,497.60/1,130,116.80 = 279,939.20/x
  3. Step 3: Cross multiply
    753,497.60x = 1,130,116.80 × 279,939.20
  4. Step 4: Simplify right side
    753,497.60x = 316,363,992,898.56
  5. Step 5: Solve for x
    x = 316,363,992,898.56/753,497.60
  6. Step 6: Final answer
    x = 419,860.65

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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.