Home / 1,330,233.10-1,995,349.65-768,978.70

Finding the Fourth Proportional to 1,330,233.10, 1,995,349.65 and 768,978.70

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Solution

The fourth proportional to 1,330,233.10, 1,995,349.65 and 768,978.70 is: 1,153,468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,233.10 : 1,995,349.65 = 768,978.70 : x
  2. Step 2: Convert to fraction form
    1,330,233.10/1,995,349.65 = 768,978.70/x
  3. Step 3: Cross multiply
    1,330,233.10x = 1,995,349.65 × 768,978.70
  4. Step 4: Simplify right side
    1,330,233.10x = 1,534,381,379,902.45
  5. Step 5: Solve for x
    x = 1,534,381,379,902.45/1,330,233.10
  6. Step 6: Final answer
    x = 1,153,468.05

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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.