Home / 415,834.40-623,751.60-258,370.40

Finding the Fourth Proportional to 415,834.40, 623,751.60 and 258,370.40

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Solution

The fourth proportional to 415,834.40, 623,751.60 and 258,370.40 is: 387,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,834.40 : 623,751.60 = 258,370.40 : x
  2. Step 2: Convert to fraction form
    415,834.40/623,751.60 = 258,370.40/x
  3. Step 3: Cross multiply
    415,834.40x = 623,751.60 × 258,370.40
  4. Step 4: Simplify right side
    415,834.40x = 161,158,950,392.64
  5. Step 5: Solve for x
    x = 161,158,950,392.64/415,834.40
  6. Step 6: Final answer
    x = 387,555.60

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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.