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Finding the Fourth Proportional to 446,645.30, 668,801.55 and 288,014.90

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Solution

The fourth proportional to 446,645.30, 668,801.55 and 288,014.90 is: 431,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,645.30 : 668,801.55 = 288,014.90 : x
  2. Step 2: Convert to fraction form
    446,645.30/668,801.55 = 288,014.90/x
  3. Step 3: Cross multiply
    446,645.30x = 668,801.55 × 288,014.90
  4. Step 4: Simplify right side
    446,645.30x = 192,624,811,543.10
  5. Step 5: Solve for x
    x = 192,624,811,543.10/446,645.30
  6. Step 6: Final answer
    x = 431,270.21

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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.