Home / 543,440.21-749,944.62-298,429.65

Finding the Fourth Proportional to 543,440.21, 749,944.62 and 298,429.65

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Solution

The fourth proportional to 543,440.21, 749,944.62 and 298,429.65 is: 411,831.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,440.21 : 749,944.62 = 298,429.65 : x
  2. Step 2: Convert to fraction form
    543,440.21/749,944.62 = 298,429.65/x
  3. Step 3: Cross multiply
    543,440.21x = 749,944.62 × 298,429.65
  4. Step 4: Simplify right side
    543,440.21x = 223,805,710,465.98
  5. Step 5: Solve for x
    x = 223,805,710,465.98/543,440.21
  6. Step 6: Final answer
    x = 411,831.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.