Home / 719,402.96-1,079,009.72-220,725.20

Finding the Fourth Proportional to 719,402.96, 1,079,009.72 and 220,725.20

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Solution

The fourth proportional to 719,402.96, 1,079,009.72 and 220,725.20 is: 331,058.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,402.96 : 1,079,009.72 = 220,725.20 : x
  2. Step 2: Convert to fraction form
    719,402.96/1,079,009.72 = 220,725.20/x
  3. Step 3: Cross multiply
    719,402.96x = 1,079,009.72 × 220,725.20
  4. Step 4: Simplify right side
    719,402.96x = 238,164,636,248.94
  5. Step 5: Solve for x
    x = 238,164,636,248.94/719,402.96
  6. Step 6: Final answer
    x = 331,058.74

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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.