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Finding the Fourth Proportional to 570,023.70, 854,500.95 and 215,276.10

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Solution

The fourth proportional to 570,023.70, 854,500.95 and 215,276.10 is: 322,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,023.70 : 854,500.95 = 215,276.10 : x
  2. Step 2: Convert to fraction form
    570,023.70/854,500.95 = 215,276.10/x
  3. Step 3: Cross multiply
    570,023.70x = 854,500.95 × 215,276.10
  4. Step 4: Simplify right side
    570,023.70x = 183,953,631,962.30
  5. Step 5: Solve for x
    x = 183,953,631,962.30/570,023.70
  6. Step 6: Final answer
    x = 322,712.25

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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.