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Finding the Fourth Proportional to 773,752.80, 1,158,004.80 and 679,274.40

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Solution

The fourth proportional to 773,752.80, 1,158,004.80 and 679,274.40 is: 1,016,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,752.80 : 1,158,004.80 = 679,274.40 : x
  2. Step 2: Convert to fraction form
    773,752.80/1,158,004.80 = 679,274.40/x
  3. Step 3: Cross multiply
    773,752.80x = 1,158,004.80 × 679,274.40
  4. Step 4: Simplify right side
    773,752.80x = 786,603,015,717.12
  5. Step 5: Solve for x
    x = 786,603,015,717.12/773,752.80
  6. Step 6: Final answer
    x = 1,016,607.65

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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.