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Finding the Fourth Proportional to 647,436.80, 973,228.80 and 461,734.40

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Solution

The fourth proportional to 647,436.80, 973,228.80 and 461,734.40 is: 694,080.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,436.80 : 973,228.80 = 461,734.40 : x
  2. Step 2: Convert to fraction form
    647,436.80/973,228.80 = 461,734.40/x
  3. Step 3: Cross multiply
    647,436.80x = 973,228.80 × 461,734.40
  4. Step 4: Simplify right side
    647,436.80x = 449,373,216,030.72
  5. Step 5: Solve for x
    x = 449,373,216,030.72/647,436.80
  6. Step 6: Final answer
    x = 694,080.44

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1.5x scale

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.