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Finding the Fourth Proportional to 647,447.58, 971,360.91 and 332,124.30

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Solution

The fourth proportional to 647,447.58, 971,360.91 and 332,124.30 is: 498,283.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,447.58 : 971,360.91 = 332,124.30 : x
  2. Step 2: Convert to fraction form
    647,447.58/971,360.91 = 332,124.30/x
  3. Step 3: Cross multiply
    647,447.58x = 971,360.91 × 332,124.30
  4. Step 4: Simplify right side
    647,447.58x = 322,612,562,281.11
  5. Step 5: Solve for x
    x = 322,612,562,281.11/647,447.58
  6. Step 6: Final answer
    x = 498,283.68

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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.