Home / 715,966.76-1,074,247.54-289,803.84

Finding the Fourth Proportional to 715,966.76, 1,074,247.54 and 289,803.84

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Solution

The fourth proportional to 715,966.76, 1,074,247.54 and 289,803.84 is: 434,826.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,966.76 : 1,074,247.54 = 289,803.84 : x
  2. Step 2: Convert to fraction form
    715,966.76/1,074,247.54 = 289,803.84/x
  3. Step 3: Cross multiply
    715,966.76x = 1,074,247.54 × 289,803.84
  4. Step 4: Simplify right side
    715,966.76x = 311,321,056,831.32
  5. Step 5: Solve for x
    x = 311,321,056,831.32/715,966.76
  6. Step 6: Final answer
    x = 434,826.13

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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.