Home / 872,742.20-1,204,094.77-711,320.00

Finding the Fourth Proportional to 872,742.20, 1,204,094.77 and 711,320.00

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Solution

The fourth proportional to 872,742.20, 1,204,094.77 and 711,320.00 is: 981,385.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,742.20 : 1,204,094.77 = 711,320.00 : x
  2. Step 2: Convert to fraction form
    872,742.20/1,204,094.77 = 711,320.00/x
  3. Step 3: Cross multiply
    872,742.20x = 1,204,094.77 × 711,320.00
  4. Step 4: Simplify right side
    872,742.20x = 856,496,683,997.63
  5. Step 5: Solve for x
    x = 856,496,683,997.63/872,742.20
  6. Step 6: Final answer
    x = 981,385.67

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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.