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Finding the Fourth Proportional to 768,030.95, 1,151,690.04 and 448,274.85

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Solution

The fourth proportional to 768,030.95, 1,151,690.04 and 448,274.85 is: 672,204.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,030.95 : 1,151,690.04 = 448,274.85 : x
  2. Step 2: Convert to fraction form
    768,030.95/1,151,690.04 = 448,274.85/x
  3. Step 3: Cross multiply
    768,030.95x = 1,151,690.04 × 448,274.85
  4. Step 4: Simplify right side
    768,030.95x = 516,273,679,927.49
  5. Step 5: Solve for x
    x = 516,273,679,927.49/768,030.95
  6. Step 6: Final answer
    x = 672,204.27

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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.