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Finding the Fourth Proportional to 570,216.06, 786,892.17 and 308,565.64

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Solution

The fourth proportional to 570,216.06, 786,892.17 and 308,565.64 is: 425,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,216.06 : 786,892.17 = 308,565.64 : x
  2. Step 2: Convert to fraction form
    570,216.06/786,892.17 = 308,565.64/x
  3. Step 3: Cross multiply
    570,216.06x = 786,892.17 × 308,565.64
  4. Step 4: Simplify right side
    570,216.06x = 242,807,886,647.29
  5. Step 5: Solve for x
    x = 242,807,886,647.29/570,216.06
  6. Step 6: Final answer
    x = 425,817.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.