Home / 777,130.10-1,165,349.55-356,534.90

Finding the Fourth Proportional to 777,130.10, 1,165,349.55 and 356,534.90

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Solution

The fourth proportional to 777,130.10, 1,165,349.55 and 356,534.90 is: 534,643.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,130.10 : 1,165,349.55 = 356,534.90 : x
  2. Step 2: Convert to fraction form
    777,130.10/1,165,349.55 = 356,534.90/x
  3. Step 3: Cross multiply
    777,130.10x = 1,165,349.55 × 356,534.90
  4. Step 4: Simplify right side
    777,130.10x = 415,487,785,274.30
  5. Step 5: Solve for x
    x = 415,487,785,274.30/777,130.10
  6. Step 6: Final answer
    x = 534,643.79

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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.