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Finding the Fourth Proportional to 647,448.80, 973,246.80 and 461,746.40

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Solution

The fourth proportional to 647,448.80, 973,246.80 and 461,746.40 is: 694,098.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,448.80 : 973,246.80 = 461,746.40 : x
  2. Step 2: Convert to fraction form
    647,448.80/973,246.80 = 461,746.40/x
  3. Step 3: Cross multiply
    647,448.80x = 973,246.80 × 461,746.40
  4. Step 4: Simplify right side
    647,448.80x = 449,393,206,211.52
  5. Step 5: Solve for x
    x = 449,393,206,211.52/647,448.80
  6. Step 6: Final answer
    x = 694,098.45

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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.