Home / 1,011,720.86-1,514,861.94-770,686.64

Finding the Fourth Proportional to 1,011,720.86, 1,514,861.94 and 770,686.64

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Solution

The fourth proportional to 1,011,720.86, 1,514,861.94 and 770,686.64 is: 1,153,958.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,720.86 : 1,514,861.94 = 770,686.64 : x
  2. Step 2: Convert to fraction form
    1,011,720.86/1,514,861.94 = 770,686.64/x
  3. Step 3: Cross multiply
    1,011,720.86x = 1,514,861.94 × 770,686.64
  4. Step 4: Simplify right side
    1,011,720.86x = 1,167,483,858,602.48
  5. Step 5: Solve for x
    x = 1,167,483,858,602.48/1,011,720.86
  6. Step 6: Final answer
    x = 1,153,958.47

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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.