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Finding the Fourth Proportional to 802,493.76, 1,205,621.04 and 757,098.80

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Solution

The fourth proportional to 802,493.76, 1,205,621.04 and 757,098.80 is: 1,137,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,493.76 : 1,205,621.04 = 757,098.80 : x
  2. Step 2: Convert to fraction form
    802,493.76/1,205,621.04 = 757,098.80/x
  3. Step 3: Cross multiply
    802,493.76x = 1,205,621.04 × 757,098.80
  4. Step 4: Simplify right side
    802,493.76x = 912,774,242,638.75
  5. Step 5: Solve for x
    x = 912,774,242,638.75/802,493.76
  6. Step 6: Final answer
    x = 1,137,422.23

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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.