Home / 289,932.32-434,831.16-79,587.20

Finding the Fourth Proportional to 289,932.32, 434,831.16 and 79,587.20

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Solution

The fourth proportional to 289,932.32, 434,831.16 and 79,587.20 is: 119,362.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,932.32 : 434,831.16 = 79,587.20 : x
  2. Step 2: Convert to fraction form
    289,932.32/434,831.16 = 79,587.20/x
  3. Step 3: Cross multiply
    289,932.32x = 434,831.16 × 79,587.20
  4. Step 4: Simplify right side
    289,932.32x = 34,606,994,497.15
  5. Step 5: Solve for x
    x = 34,606,994,497.15/289,932.32
  6. Step 6: Final answer
    x = 119,362.32

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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.