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Finding the Fourth Proportional to 649,811.60, 972,967.80 and 649,811.60

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Solution

The fourth proportional to 649,811.60, 972,967.80 and 649,811.60 is: 972,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,811.60 : 972,967.80 = 649,811.60 : x
  2. Step 2: Convert to fraction form
    649,811.60/972,967.80 = 649,811.60/x
  3. Step 3: Cross multiply
    649,811.60x = 972,967.80 × 649,811.60
  4. Step 4: Simplify right side
    649,811.60x = 632,245,762,866.48
  5. Step 5: Solve for x
    x = 632,245,762,866.48/649,811.60
  6. Step 6: Final answer
    x = 972,967.80

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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.