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Finding the Fourth Proportional to 651,812.60, 978,156.30 and 296,643.80

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Solution

The fourth proportional to 651,812.60, 978,156.30 and 296,643.80 is: 445,164.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,812.60 : 978,156.30 = 296,643.80 : x
  2. Step 2: Convert to fraction form
    651,812.60/978,156.30 = 296,643.80/x
  3. Step 3: Cross multiply
    651,812.60x = 978,156.30 × 296,643.80
  4. Step 4: Simplify right side
    651,812.60x = 290,164,001,825.94
  5. Step 5: Solve for x
    x = 290,164,001,825.94/651,812.60
  6. Step 6: Final answer
    x = 445,164.76

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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.