Home / 426,962.30-640,548.57-300,848.85

Finding the Fourth Proportional to 426,962.30, 640,548.57 and 300,848.85

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Solution

The fourth proportional to 426,962.30, 640,548.57 and 300,848.85 is: 451,347.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,962.30 : 640,548.57 = 300,848.85 : x
  2. Step 2: Convert to fraction form
    426,962.30/640,548.57 = 300,848.85/x
  3. Step 3: Cross multiply
    426,962.30x = 640,548.57 × 300,848.85
  4. Step 4: Simplify right side
    426,962.30x = 192,708,300,653.64
  5. Step 5: Solve for x
    x = 192,708,300,653.64/426,962.30
  6. Step 6: Final answer
    x = 451,347.35

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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.