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Finding the Fourth Proportional to 699,803.67, 966,193.88 and 538,373.91

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Solution

The fourth proportional to 699,803.67, 966,193.88 and 538,373.91 is: 743,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,803.67 : 966,193.88 = 538,373.91 : x
  2. Step 2: Convert to fraction form
    699,803.67/966,193.88 = 538,373.91/x
  3. Step 3: Cross multiply
    699,803.67x = 966,193.88 × 538,373.91
  4. Step 4: Simplify right side
    699,803.67x = 520,173,574,301.80
  5. Step 5: Solve for x
    x = 520,173,574,301.80/699,803.67
  6. Step 6: Final answer
    x = 743,313.58

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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.