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Finding the Fourth Proportional to 649,287.80, 973,931.70 and 649,287.80

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Solution

The fourth proportional to 649,287.80, 973,931.70 and 649,287.80 is: 973,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,287.80 : 973,931.70 = 649,287.80 : x
  2. Step 2: Convert to fraction form
    649,287.80/973,931.70 = 649,287.80/x
  3. Step 3: Cross multiply
    649,287.80x = 973,931.70 × 649,287.80
  4. Step 4: Simplify right side
    649,287.80x = 632,361,970,843.26
  5. Step 5: Solve for x
    x = 632,361,970,843.26/649,287.80
  6. Step 6: Final answer
    x = 973,931.70

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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.