Home / 289,824.40-434,739.60-79,462.32

Finding the Fourth Proportional to 289,824.40, 434,739.60 and 79,462.32

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Solution

The fourth proportional to 289,824.40, 434,739.60 and 79,462.32 is: 119,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,824.40 : 434,739.60 = 79,462.32 : x
  2. Step 2: Convert to fraction form
    289,824.40/434,739.60 = 79,462.32/x
  3. Step 3: Cross multiply
    289,824.40x = 434,739.60 × 79,462.32
  4. Step 4: Simplify right side
    289,824.40x = 34,545,417,211.87
  5. Step 5: Solve for x
    x = 34,545,417,211.87/289,824.40
  6. Step 6: Final answer
    x = 119,194.30

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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.