Home / 289,934.32-434,834.16-79,589.20

Finding the Fourth Proportional to 289,934.32, 434,834.16 and 79,589.20

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Solution

The fourth proportional to 289,934.32, 434,834.16 and 79,589.20 is: 119,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,934.32 : 434,834.16 = 79,589.20 : x
  2. Step 2: Convert to fraction form
    289,934.32/434,834.16 = 79,589.20/x
  3. Step 3: Cross multiply
    289,934.32x = 434,834.16 × 79,589.20
  4. Step 4: Simplify right side
    289,934.32x = 34,608,102,927.07
  5. Step 5: Solve for x
    x = 34,608,102,927.07/289,934.32
  6. Step 6: Final answer
    x = 119,365.32

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1.5x scale

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.