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Finding the Fourth Proportional to 647,510.60, 891,531.30 and 550,523.72

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Solution

The fourth proportional to 647,510.60, 891,531.30 and 550,523.72 is: 757,993.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,510.60 : 891,531.30 = 550,523.72 : x
  2. Step 2: Convert to fraction form
    647,510.60/891,531.30 = 550,523.72/x
  3. Step 3: Cross multiply
    647,510.60x = 891,531.30 × 550,523.72
  4. Step 4: Simplify right side
    647,510.60x = 490,809,127,772.44
  5. Step 5: Solve for x
    x = 490,809,127,772.44/647,510.60
  6. Step 6: Final answer
    x = 757,993.97

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1.5x scale

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.