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Finding the Fourth Proportional to 975,611.80, 1,463,855.10 and 442,858.60

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Solution

The fourth proportional to 975,611.80, 1,463,855.10 and 442,858.60 is: 664,486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,611.80 : 1,463,855.10 = 442,858.60 : x
  2. Step 2: Convert to fraction form
    975,611.80/1,463,855.10 = 442,858.60/x
  3. Step 3: Cross multiply
    975,611.80x = 1,463,855.10 × 442,858.60
  4. Step 4: Simplify right side
    975,611.80x = 648,280,820,188.86
  5. Step 5: Solve for x
    x = 648,280,820,188.86/975,611.80
  6. Step 6: Final answer
    x = 664,486.45

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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.