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Finding the Fourth Proportional to 656,399.60, 984,005.40 and 456,815.60

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Solution

The fourth proportional to 656,399.60, 984,005.40 and 456,815.60 is: 684,810.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,399.60 : 984,005.40 = 456,815.60 : x
  2. Step 2: Convert to fraction form
    656,399.60/984,005.40 = 456,815.60/x
  3. Step 3: Cross multiply
    656,399.60x = 984,005.40 × 456,815.60
  4. Step 4: Simplify right side
    656,399.60x = 449,509,017,204.24
  5. Step 5: Solve for x
    x = 449,509,017,204.24/656,399.60
  6. Step 6: Final answer
    x = 684,810.01

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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.