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Finding the Fourth Proportional to 713,177.16, 984,292.88 and 455,165.43

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Solution

The fourth proportional to 713,177.16, 984,292.88 and 455,165.43 is: 628,197.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,177.16 : 984,292.88 = 455,165.43 : x
  2. Step 2: Convert to fraction form
    713,177.16/984,292.88 = 455,165.43/x
  3. Step 3: Cross multiply
    713,177.16x = 984,292.88 × 455,165.43
  4. Step 4: Simplify right side
    713,177.16x = 448,016,089,695.31
  5. Step 5: Solve for x
    x = 448,016,089,695.31/713,177.16
  6. Step 6: Final answer
    x = 628,197.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.