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Finding the Fourth Proportional to 768,002.70, 1,152,004.05 and 747,266.70

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Solution

The fourth proportional to 768,002.70, 1,152,004.05 and 747,266.70 is: 1,120,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,002.70 : 1,152,004.05 = 747,266.70 : x
  2. Step 2: Convert to fraction form
    768,002.70/1,152,004.05 = 747,266.70/x
  3. Step 3: Cross multiply
    768,002.70x = 1,152,004.05 × 747,266.70
  4. Step 4: Simplify right side
    768,002.70x = 860,854,264,830.14
  5. Step 5: Solve for x
    x = 860,854,264,830.14/768,002.70
  6. Step 6: Final answer
    x = 1,120,900.05

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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.