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Finding the Fourth Proportional to 570,860.80, 855,254.40 and 348,985.60

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Solution

The fourth proportional to 570,860.80, 855,254.40 and 348,985.60 is: 522,844.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,860.80 : 855,254.40 = 348,985.60 : x
  2. Step 2: Convert to fraction form
    570,860.80/855,254.40 = 348,985.60/x
  3. Step 3: Cross multiply
    570,860.80x = 855,254.40 × 348,985.60
  4. Step 4: Simplify right side
    570,860.80x = 298,471,469,936.64
  5. Step 5: Solve for x
    x = 298,471,469,936.64/570,860.80
  6. Step 6: Final answer
    x = 522,844.57

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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.