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Finding the Fourth Proportional to 439,376.80, 657,682.80 and 314,960.80

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Solution

The fourth proportional to 439,376.80, 657,682.80 and 314,960.80 is: 471,450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,376.80 : 657,682.80 = 314,960.80 : x
  2. Step 2: Convert to fraction form
    439,376.80/657,682.80 = 314,960.80/x
  3. Step 3: Cross multiply
    439,376.80x = 657,682.80 × 314,960.80
  4. Step 4: Simplify right side
    439,376.80x = 207,144,300,834.24
  5. Step 5: Solve for x
    x = 207,144,300,834.24/439,376.80
  6. Step 6: Final answer
    x = 471,450.25

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1.5x scale

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.