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Finding the Fourth Proportional to 570,087.20, 854,596.20 and 215,339.60

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Solution

The fourth proportional to 570,087.20, 854,596.20 and 215,339.60 is: 322,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,087.20 : 854,596.20 = 215,339.60 : x
  2. Step 2: Convert to fraction form
    570,087.20/854,596.20 = 215,339.60/x
  3. Step 3: Cross multiply
    570,087.20x = 854,596.20 × 215,339.60
  4. Step 4: Simplify right side
    570,087.20x = 184,028,403,869.52
  5. Step 5: Solve for x
    x = 184,028,403,869.52/570,087.20
  6. Step 6: Final answer
    x = 322,807.47

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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.