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Finding the Fourth Proportional to 877,528.60, 1,314,324.60 and 720,064.60

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Solution

The fourth proportional to 877,528.60, 1,314,324.60 and 720,064.60 is: 1,078,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,528.60 : 1,314,324.60 = 720,064.60 : x
  2. Step 2: Convert to fraction form
    877,528.60/1,314,324.60 = 720,064.60/x
  3. Step 3: Cross multiply
    877,528.60x = 1,314,324.60 × 720,064.60
  4. Step 4: Simplify right side
    877,528.60x = 946,398,617,369.16
  5. Step 5: Solve for x
    x = 946,398,617,369.16/877,528.60
  6. Step 6: Final answer
    x = 1,078,481.79

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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.