Home / 727,118.85-1,087,640.05-510,961.92

Finding the Fourth Proportional to 727,118.85, 1,087,640.05 and 510,961.92

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Solution

The fourth proportional to 727,118.85, 1,087,640.05 and 510,961.92 is: 764,307.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,118.85 : 1,087,640.05 = 510,961.92 : x
  2. Step 2: Convert to fraction form
    727,118.85/1,087,640.05 = 510,961.92/x
  3. Step 3: Cross multiply
    727,118.85x = 1,087,640.05 × 510,961.92
  4. Step 4: Simplify right side
    727,118.85x = 555,742,648,216.90
  5. Step 5: Solve for x
    x = 555,742,648,216.90/727,118.85
  6. Step 6: Final answer
    x = 764,307.86

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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.