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Finding the Fourth Proportional to 607,064.40, 911,633.40 and 397,630.80

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Solution

The fourth proportional to 607,064.40, 911,633.40 and 397,630.80 is: 597,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,064.40 : 911,633.40 = 397,630.80 : x
  2. Step 2: Convert to fraction form
    607,064.40/911,633.40 = 397,630.80/x
  3. Step 3: Cross multiply
    607,064.40x = 911,633.40 × 397,630.80
  4. Step 4: Simplify right side
    607,064.40x = 362,493,518,148.72
  5. Step 5: Solve for x
    x = 362,493,518,148.72/607,064.40
  6. Step 6: Final answer
    x = 597,125.31

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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.