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Finding the Fourth Proportional to 965,775.60, 1,448,656.20 and 291,855.60

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Solution

The fourth proportional to 965,775.60, 1,448,656.20 and 291,855.60 is: 437,781.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,775.60 : 1,448,656.20 = 291,855.60 : x
  2. Step 2: Convert to fraction form
    965,775.60/1,448,656.20 = 291,855.60/x
  3. Step 3: Cross multiply
    965,775.60x = 1,448,656.20 × 291,855.60
  4. Step 4: Simplify right side
    965,775.60x = 422,798,424,444.72
  5. Step 5: Solve for x
    x = 422,798,424,444.72/965,775.60
  6. Step 6: Final answer
    x = 437,781.22

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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.