Home / 783,130.20-1,174,695.30-409,104.60

Finding the Fourth Proportional to 783,130.20, 1,174,695.30 and 409,104.60

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Solution

The fourth proportional to 783,130.20, 1,174,695.30 and 409,104.60 is: 613,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,130.20 : 1,174,695.30 = 409,104.60 : x
  2. Step 2: Convert to fraction form
    783,130.20/1,174,695.30 = 409,104.60/x
  3. Step 3: Cross multiply
    783,130.20x = 1,174,695.30 × 409,104.60
  4. Step 4: Simplify right side
    783,130.20x = 480,573,250,828.38
  5. Step 5: Solve for x
    x = 480,573,250,828.38/783,130.20
  6. Step 6: Final answer
    x = 613,656.90

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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.