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Finding the Fourth Proportional to 708,978.60, 1,063,341.60 and 282,478.67

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Solution

The fourth proportional to 708,978.60, 1,063,341.60 and 282,478.67 is: 423,667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,978.60 : 1,063,341.60 = 282,478.67 : x
  2. Step 2: Convert to fraction form
    708,978.60/1,063,341.60 = 282,478.67/x
  3. Step 3: Cross multiply
    708,978.60x = 1,063,341.60 × 282,478.67
  4. Step 4: Simplify right side
    708,978.60x = 300,371,315,606.96
  5. Step 5: Solve for x
    x = 300,371,315,606.96/708,978.60
  6. Step 6: Final answer
    x = 423,667.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.