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Finding the Fourth Proportional to 651,750.90, 978,501.15 and 416,138.10

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Solution

The fourth proportional to 651,750.90, 978,501.15 and 416,138.10 is: 624,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,750.90 : 978,501.15 = 416,138.10 : x
  2. Step 2: Convert to fraction form
    651,750.90/978,501.15 = 416,138.10/x
  3. Step 3: Cross multiply
    651,750.90x = 978,501.15 × 416,138.10
  4. Step 4: Simplify right side
    651,750.90x = 407,191,609,408.82
  5. Step 5: Solve for x
    x = 407,191,609,408.82/651,750.90
  6. Step 6: Final answer
    x = 624,765.70

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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.