Home / 428,940,320.96-591,890,279.94-240,725,446

Finding the Fourth Proportional to 428,940,320.96, 591,890,279.94 and 240,725,446

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Solution

The fourth proportional to 428,940,320.96, 591,890,279.94 and 240,725,446 is: 332,174,534.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,940,320.96 : 591,890,279.94 = 240,725,446 : x
  2. Step 2: Convert to fraction form
    428,940,320.96/591,890,279.94 = 240,725,446/x
  3. Step 3: Cross multiply
    428,940,320.96x = 591,890,279.94 × 240,725,446
  4. Step 4: Simplify right side
    428,940,320.96x = 142,483,051,621,621,360
  5. Step 5: Solve for x
    x = 142,483,051,621,621,360/428,940,320.96
  6. Step 6: Final answer
    x = 332,174,534.92

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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.