Home / 939,411.92-1,288,417.54-900,832.88

Finding the Fourth Proportional to 939,411.92, 1,288,417.54 and 900,832.88

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Solution

The fourth proportional to 939,411.92, 1,288,417.54 and 900,832.88 is: 1,235,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,411.92 : 1,288,417.54 = 900,832.88 : x
  2. Step 2: Convert to fraction form
    939,411.92/1,288,417.54 = 900,832.88/x
  3. Step 3: Cross multiply
    939,411.92x = 1,288,417.54 × 900,832.88
  4. Step 4: Simplify right side
    939,411.92x = 1,160,648,883,200.72
  5. Step 5: Solve for x
    x = 1,160,648,883,200.72/939,411.92
  6. Step 6: Final answer
    x = 1,235,505.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.